COCCYX The coccyx is the terminal portion of the vertebral column and forms part of the posterior wall of the pelvic cavity. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The curvature shown in the left image is the normal curve of the spine when it is viewed from the side (not scoliosis). The coccyx is formed of either three, four or five rudimentary vertebrae.It articulates superiorly with the sacrum.In each of the first three segments may be traced a rudimentary body and articular and transverse processes; the last piece (sometimes the third) is a mere nodule of bone. There are several items of concern here. ... How Many Cervical Vertebrae Are There? Usually there are 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 … Five vertebrae are fused together to form the sacrum and 4 vertebrae are fused together to form the coccyx. In the images, the cushion on the top is the original one I purchased in Feb 2019. Figure 5: Diagram showing the sections of the healthy spine, with the neck (cervical) section at the top, followed below by the thoracic and lumbar sections, the sacrum and the coccyx (tailbone). An injury to the coccyx is a major risk factor for coccydynia. The vertebral column is divided into five regions and consists of 33 … In humans, the vertebral column usually consists of 33 vertebrae, placed in series and connected by ligaments and intervertebral discs. The spinal cord runs through its center. Pelvis The bony framework of the pelvis, called the pelvic girdle, is comprised of two hip bones, the sacrum and the coccyx The hip bone is made by fusion of three bones; ilium, ischium and pubis. Thoracic vertabrae T1 - T12 vertebrae of the upper body (thorax) Lumbar vertebrae L1 - L5 vertebrae of the lower back Bones of the sacrum S1 - S5 vertebra within the pelvic girdle. coccyx sacrum lumbar vertebrae Several pelvic muscles attach to the coccyx. Several pelvic muscles attach to the coccyx. The coccyx, or tailbone, is inferior to the sacrum and made of several tiny, fused vertebrae. The hip bones articulate with themselves via pubic symphysis, and with the sacrum via the sacroiliac joint.The coccyx articulates with the sacrum through the … When a vestigial tail doesn’t fuse with the coccyx and remains after birth, what’s left is skin that contain no bones. Below the thoracic vertebrae are five lumbar (say: LUM-bar) vertebrae. The spinal canal is a tunnel that houses the spinal cord and nerves, protecting them from injury. The major components of the skeletal system are classed as either axial skeleton or appendicular skeleton. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. Several pelvic muscles attach to the coccyx. It is common and quite natural to be born with as few as three and as many as five coccygeal vertebrae. There are thirty-three vertebrae in the human vertebral column—seven cervical vertebrae, twelve thoracic vertebrae, five lumbar vertebrae, five fused sacral vertebrae forming the sacrum and three to five coccygeal vertebrae, forming the coccyx. Coccyx Carpals Metacarpals Phalanges Ischium Femur Patella Sternum Ribs Thoracic vertebrae (T11) Lumbar vertebrae (L4) Ilium Pubis Skull Cervical vertebrae Maxilla Mandible Tibia Fibula Tarsals Metatarsals Phalanges M04_FREM0254_06_SE_C04.indd 85 18/12/14 10:12 pm There are several items of concern here. The cervical spine is located at the very top of the spinal column. However, the number of vertebrae can vary between 32 and 35. Coccyx Carpals Metacarpals Phalanges Ischium Femur Patella Sternum Ribs Thoracic vertebrae (T11) Lumbar vertebrae (L4) Ilium Pubis Skull Cervical vertebrae Maxilla Mandible Tibia Fibula Tarsals Metatarsals Phalanges M04_FREM0254_06_SE_C04.indd 85 18/12/14 10:12 pm It also contains many passages for the spinal nerves that exit the spinal cord and spread through the pelvis and legs. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail. Usually there are 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 … The coccyx Co1 - Co4 The lower tip of the spine. If you compare the thoracic (mid-back) and lumbar (low back) vertebrae to the cervical, you’ll see the C3-C7 bones are smaller. Coccydynia is diagnosed based on the history and physical examination. The vertebral column is characterized by a variable number of curves. Naturally fused vertebrae can exist anywhere in the backbone and are actually a rather common type of spinal abnormality. Vertebrae are boneslocated within the vertebral column.In humans, they are a series of 33 bonesthat run from the base of the skull to the coccyx. Spinal column: Also called the vertebral column, the spinal column is made up of 33 vertically stacked pieces of bone called vertebrae, running from just below your skull to the tailbone . Ankylosing spondylitis is a rare type of arthritis in your spine that most often affects people younger than 45. Most mammals have only seven neck bones (cervical vertebrae), but there are exceptions to this rule. The one on the bottom is the second one I purchased in August 2020. There are usually four coccygeal vertebrae that attach to the apex (small, bottom part) of the sacrum. The cervical vertebrae make up the neck. C3-C7 Vertebrae. The coccyx, or tailbone, is inferior to the sacrum and made of several tiny, fused vertebrae. The vertebral column is divided into five regions and consists of 33 … Most vertebrae move to allow for a range of motion. The vertebrae, or bony building blocks of the spine, are cushioned by gel-like discs in between the vertebrae. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. Spinal anatomy is a remarkable combination of strong bones, flexible ligaments and tendons, large muscles and highly sensitive nerves. the neck region. coccyx sacrum lumbar vertebrae It also contains many passages for the spinal nerves that exit the spinal cord and spread through the pelvis and legs. Most mammals have only seven neck bones (cervical vertebrae), but there are exceptions to this rule. When a disc ruptures, it is referred to as a herniated disc, which can cause significant pain. These may include Compression, Burst Fractures, Flexion-distraction and Fracture-dislocation. The cervical vertebrae make up the neck. Coccyx; The vertebrae of the spinal column are responsible for protecting the spinal cord, which is a bundle of nerves that relays messages between the brain and the rest of the body. Fun Fact: The word “coccyx” comes from the Greek “kokkyx,” meaning “cuckoo,” for its resemblance to the bill of the cuckoo bird. There are usually four coccygeal vertebrae that attach to the apex (small, bottom part) of the sacrum. There are many mimics of coccydynia. Vertebrae are boneslocated within the vertebral column.In humans, they are a series of 33 bonesthat run from the base of the skull to the coccyx. In humans, the coccyx bears our body weight when sitting down and provides attachment points for muscles of the pelvic and gluteal regions. The irregularly shaped bones form the roughly S-shape of the spinal cord. The coccyx is formed of either three, four or five rudimentary vertebrae.It articulates superiorly with the sacrum.In each of the first three segments may be traced a rudimentary body and articular and transverse processes; the last piece (sometimes the third) is a mere nodule of bone. These guys anchor your ribs in place. There are small holes (foramen) along both sides of the sacrum that are left over when individual vertebrae fuse together. Vertebrae Definition. The length of the coccyx has no effect on the body’s function. The first 24 vertebrae are separated by discs known as intervertebral discs, and bound together by ligaments and muscles. Figure 5: Diagram showing the sections of the healthy spine, with the neck (cervical) section at the top, followed below by the thoracic and lumbar sections, the sacrum and the coccyx (tailbone). Below the thoracic vertebrae are five lumbar (say: LUM-bar) vertebrae. In humans, the coccyx bears our body weight when sitting down and provides attachment points for muscles of the pelvic and gluteal regions. Cervical vertebrae C3-C7 are similar in shape and function and are known as “typical” vertebra. The triangular sacrum forms joints between the lumbar vertebrae and the hip bones. It resembles a miniature sacrum in shape. Giraffes and humans have SEVEN vertebrae in their necks. Coccydynia is diagnosed based on the history and physical examination. Ankylosing spondylitis is a rare type of arthritis in your spine that most often affects people younger than 45. Cervical vertebrae C3-C7 are similar in shape and function and are known as “typical” vertebra. The vertebral column (spine or backbone) is a curved structure composed of bony vertebrae that are interconnected by cartilaginous intervertebral discs.It is part of the axial skeleton and extends from the base of the skull to the tip of the coccyx. However, the number of vertebrae can vary between 32 and 35. These bones fuse together between ages 16 and 18. It is designed to be incredibly strong, protecting the highly sensitive nerve roots, yet highly flexible, providing for mobility on many different planes. The vertebral column (spine or backbone) is a curved structure composed of bony vertebrae that are interconnected by cartilaginous intervertebral discs.It is part of the axial skeleton and extends from the base of the skull to the tip of the coccyx. These may include Compression, Burst Fractures, Flexion-distraction and Fracture-dislocation. The supporting structure called vertebral column is thus made up of 26 bones including 24 vertebrae and a sacrum and coccyx. The vertebrae, or bony building blocks of the spine, are cushioned by gel-like discs in between the vertebrae. The first 24 vertebrae are separated by discs known as intervertebral discs, and bound together by ligaments and muscles. In humans, the vertebral column usually consists of 33 vertebrae, placed in series and connected by ligaments and intervertebral discs. Giraffes and humans have SEVEN vertebrae in their necks. The ligaments of the spinal canal and/or lumbar vertebrae or the weakening of spinal muscles can also cause axial back pain. The thoracic vertebrae comprise the chest section and have ribs attached. Vertebrae are boneslocated within the vertebral column.In humans, they are a series of 33 bonesthat run from the base of the skull to the coccyx. While most people have a coccyx made of 4 fused vertebrae, the coccyx may consist of as few as 3 or as many as 5 vertebrae. The lowest vertebrae (sacrum and coccyx) are fused together and don’t move. When a vestigial tail doesn’t fuse with the coccyx and remains after birth, what’s left is skin that contain no bones. When a disc ruptures, it is referred to as a herniated disc, which can cause significant pain. COCCYX The coccyx is the terminal portion of the vertebral column and forms part of the posterior wall of the pelvic cavity. Giraffe Vertebra. 3 Read more about Causes of Lower Back Pain If the lower back pain increases while seated, and typically improves after standing, it may indicate a herniated disc in the lumbar region (lower part of the spine). These guys anchor your ribs in place. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. It is made up of 33 bones, known as vertebrae. The length of the coccyx has no effect on the body’s function. It is common and quite natural to be born with as few as three and as many as five coccygeal vertebrae. 26 vertebrae (7 cervical, 12 thoracic, 5 lumbar, sacrum made from 5 fused vertebrae, and coccyx made from 3 fused vertebrae) 24 ribs, 1 sternum or breastbone, shoulder girdle (2 clavicles and 2 scapulae) 2 in arms (humerus), 4 in forearms (2 radius, 2 ulna) 54 in the hands (carpus, metacarpus, and digits) 2 Hip bones; 2 in thighs Whales show several specializations—the cervical vertebrae may be either much reduced or much increased in number, and the sacrum is missing. It is made up of 33 bones, known as vertebrae. The human skeleton makes up about 20 percent of your body mass, providing anchor points for your muscles, tendons and ligaments and protecting your brain, spinal column and internal organs. Natural spinal fusions can occur from several different source processes and might have a variety of effects on the remainder of the vertebral column, depending on many factors. There are many causes of back pain. Giraffe Vertebra. 26 vertebrae (7 cervical, 12 thoracic, 5 lumbar, sacrum made from 5 fused vertebrae, and coccyx made from 3 fused vertebrae) 24 ribs, 1 sternum or breastbone, shoulder girdle (2 clavicles and 2 scapulae) 2 in arms (humerus), 4 in forearms (2 radius, 2 ulna) 54 in the hands (carpus, metacarpus, and digits) 2 Hip bones; 2 in thighs The cervical vertebrae make up the neck. Below the cervical vertebrae are the thoracic (say: thuh-RAS-ik) vertebrae, and there are 12 in all. There are many causes of back pain. Symptoms and signs of coccydynia include focal pain and tenderness at the tailbone. The irregularly shaped bones form the roughly S-shape of the spinal cord. The major components of the skeletal system are classed as either axial skeleton or appendicular skeleton. The first 24 vertebrae are separated by discs known as intervertebral discs, and bound together by ligaments and muscles. Most vertebrae move to allow for a range of motion. It is common and quite natural to be born with as few as three and as many as five coccygeal vertebrae. The difference between the two is very noticeable and quite laughable. These discs can degenerate with aging and are prone to injury as a result. The supporting structure called vertebral column is thus made up of 26 bones including 24 vertebrae and a sacrum and coccyx. These discs can degenerate with aging and are prone to injury as a result. The triangular sacrum forms joints between the lumbar vertebrae and the hip bones. Spinal column: Also called the vertebral column, the spinal column is made up of 33 vertically stacked pieces of bone called vertebrae, running from just below your skull to the tailbone . The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. An injury to the coccyx is a major risk factor for coccydynia. If there's anything for the armchair people to get from the accident it's that even jumps or trails we take for granted having cleared them fine many times still pose a … C3-C7 Vertebrae. The manatee and the two-toed sloth have only SIX cervical vertebrae, the ant bear has EIGHT cervical vertebrae and the three-toed sloth has NINE cervical vertebrae. If there's anything for the armchair people to get from the accident it's that even jumps or trails we take for granted having cleared them fine many times still pose a … Natural spinal fusions can occur from several different source processes and might have a variety of effects on the remainder of the vertebral column, depending on many factors. Most of the time, they are referred to as Co1-Co4. Although the tail lacks bones, it … Most of the time, they are referred to as Co1-Co4. The coccyx, or tailbone, is inferior to the sacrum and made of several tiny, fused vertebrae. These bones fuse together between ages 16 and 18. The one on the bottom is the second one I purchased in August 2020. Naturally fused vertebrae can exist anywhere in the backbone and are actually a rather common type of spinal abnormality. Humans have 7 cervical, 12 thoracic, 5 lumbar, 5 fused sacral, and 3 to 5 fused caudal vertebrae (together called the coccyx). An injury to the coccyx is a major risk factor for coccydynia. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. Ankylosing spondylitis is a rare type of arthritis in your spine that most often affects people younger than 45. The one on the bottom is the second one I purchased in August 2020. Common Types Of Fractured Vertebrae Injuries. There are several types of spinal fractures in which a person can suffer from. Thoracic vertabrae T1 - T12 vertebrae of the upper body (thorax) Lumbar vertebrae L1 - L5 vertebrae of the lower back Bones of the sacrum S1 - S5 vertebra within the pelvic girdle. There are several items of concern here. There are many mimics of coccydynia. Pelvis The bony framework of the pelvis, called the pelvic girdle, is comprised of two hip bones, the sacrum and the coccyx The hip bone is made by fusion of three bones; ilium, ischium and pubis. There are several types of spinal fractures in which a person can suffer from. The major components of the skeletal system are classed as either axial skeleton or appendicular skeleton. There are a number of common broken vertebrae injuries in the back area, many of which will be discussed in the next section. Cervical vertebrae C3-C7 are similar in shape and function and are known as “typical” vertebra. COCCYX The coccyx is the terminal portion of the vertebral column and forms part of the posterior wall of the pelvic cavity. The spinal cord runs through its center. Most vertebrae move to allow for a range of motion. Similar to the sacral vertebrae, these vertebrae too exist separately in the first two decades of life. The coccyx serves as an anchor for certain pelvic muscles and ligaments. the neck region. There are a number of common broken vertebrae injuries in the back area, many of which will be discussed in the next section. Usually there are 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 … These discs can degenerate with aging and are prone to injury as a result. The ligaments of the spinal canal and/or lumbar vertebrae or the weakening of spinal muscles can also cause axial back pain. However, the number of vertebrae can vary between 32 and 35. Symptoms and signs of coccydynia include focal pain and tenderness at the tailbone. Fun Fact: The word “coccyx” comes from the Greek “kokkyx,” meaning “cuckoo,” for its resemblance to the bill of the cuckoo bird. 3 Read more about Causes of Lower Back Pain If the lower back pain increases while seated, and typically improves after standing, it may indicate a herniated disc in the lumbar region (lower part of the spine). Most of the time, they are referred to as Co1-Co4. Common Types Of Fractured Vertebrae Injuries. Coccydynia is diagnosed based on the history and physical examination. The coccyx Co1 - Co4 The lower tip of the spine. There are thirty-three vertebrae in the human vertebral column—seven cervical vertebrae, twelve thoracic vertebrae, five lumbar vertebrae, five fused sacral vertebrae forming the sacrum and three to five coccygeal vertebrae, forming the coccyx. If you compare the thoracic (mid-back) and lumbar (low back) vertebrae to the cervical, you’ll see the C3-C7 bones are smaller. Pelvis The bony framework of the pelvis, called the pelvic girdle, is comprised of two hip bones, the sacrum and the coccyx The hip bone is made by fusion of three bones; ilium, ischium and pubis. The curvature shown in the left image is the normal curve of the spine when it is viewed from the side (not scoliosis). Most mammals have only seven neck bones (cervical vertebrae), but there are exceptions to this rule. These may include Compression, Burst Fractures, Flexion-distraction and Fracture-dislocation. There are usually four coccygeal vertebrae that attach to the apex (small, bottom part) of the sacrum. Depending on how many sacral vertebrae there are, there can be three to five sacral foramen on each side (though there are usually four). The coccyx is formed of either three, four or five rudimentary vertebrae.It articulates superiorly with the sacrum.In each of the first three segments may be traced a rudimentary body and articular and transverse processes; the last piece (sometimes the third) is a mere nodule of bone. There are small holes (foramen) along both sides of the sacrum that are left over when individual vertebrae fuse together. There is a significant difference in quality, comfort and durability between the two. ... How Many Cervical Vertebrae Are There? Vertebrae Definition. Similar to the sacral vertebrae, these vertebrae too exist separately in the first two decades of life. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail. In humans, the coccyx bears our body weight when sitting down and provides attachment points for muscles of the pelvic and gluteal regions. The difference between the two is very noticeable and quite laughable. Humans have 7 cervical, 12 thoracic, 5 lumbar, 5 fused sacral, and 3 to 5 fused caudal vertebrae (together called the coccyx). Vertebrae Definition. 4 The lowest vertebrae (sacrum and coccyx) are fused together and don’t move. The curvature shown in the left image is the normal curve of the spine when it is viewed from the side (not scoliosis). 4 The cervical spine is located at the very top of the spinal column. There are many mimics of coccydynia. C1 is the upper most vertebrae. 3 Read more about Causes of Lower Back Pain If the lower back pain increases while seated, and typically improves after standing, it may indicate a herniated disc in the lumbar region (lower part of the spine). Below the cervical vertebrae are the thoracic (say: thuh-RAS-ik) vertebrae, and there are 12 in all. Humans have 7 cervical, 12 thoracic, 5 lumbar, 5 fused sacral, and 3 to 5 fused caudal vertebrae (together called the coccyx). The vertebral column is characterized by a variable number of curves. The vertebral column is divided into five regions and consists of 33 … The spinal cord runs through its center. It also contains many passages for the spinal nerves that exit the spinal cord and spread through the pelvis and legs. Whales show several specializations—the cervical vertebrae may be either much reduced or much increased in number, and the sacrum is missing. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail. Depending on how many sacral vertebrae there are, there can be three to five sacral foramen on each side (though there are usually four). These bones fuse together between ages 16 and 18. The coccyx Co1 - Co4 The lower tip of the spine. C1 is the upper most vertebrae. It is designed to be incredibly strong, protecting the highly sensitive nerve roots, yet highly flexible, providing for mobility on many different planes. Coccyx; The vertebrae of the spinal column are responsible for protecting the spinal cord, which is a bundle of nerves that relays messages between the brain and the rest of the body. Spinal column: Also called the vertebral column, the spinal column is made up of 33 vertically stacked pieces of bone called vertebrae, running from just below your skull to the tailbone . C1 is the upper most vertebrae. The coccyx serves as an anchor for certain pelvic muscles and ligaments. Symptoms and signs of coccydynia include focal pain and tenderness at the tailbone. Natural spinal fusions can occur from several different source processes and might have a variety of effects on the remainder of the vertebral column, depending on many factors. Although the tail lacks bones, it … These guys anchor your ribs in place. Spinal anatomy is a remarkable combination of strong bones, flexible ligaments and tendons, large muscles and highly sensitive nerves. Vertebrae: The spine has 33 stacked vertebrae (small bones) that form the spinal canal. The regional vertebrae increase in size as they progress downwards but become smaller in the coccyx. When a vestigial tail doesn’t fuse with the coccyx and remains after birth, what’s left is skin that contain no bones. The thoracic vertebrae comprise the chest section and have ribs attached. There is a significant difference in quality, comfort and durability between the two. The thoracic vertebrae comprise the chest section and have ribs attached. The supporting structure called vertebral column is thus made up of 26 bones including 24 vertebrae and a sacrum and coccyx. The vertebral column is characterized by a variable number of curves. While most people have a coccyx made of 4 fused vertebrae, the coccyx may consist of as few as 3 or as many as 5 vertebrae. It is designed to be incredibly strong, protecting the highly sensitive nerve roots, yet highly flexible, providing for mobility on many different planes. Similar to the sacral vertebrae, these vertebrae too exist separately in the first two decades of life. Below the thoracic vertebrae are five lumbar (say: LUM-bar) vertebrae. coccyx sacrum lumbar vertebrae In humans, the vertebral column usually consists of 33 vertebrae, placed in series and connected by ligaments and intervertebral discs. The pain is usually dull and achy. It resembles a miniature sacrum in shape. The ligaments of the spinal canal and/or lumbar vertebrae or the weakening of spinal muscles can also cause axial back pain. Below the cervical vertebrae are the thoracic (say: thuh-RAS-ik) vertebrae, and there are 12 in all. The coccyx serves as an anchor for certain pelvic muscles and ligaments. The pain is usually dull and achy. Coccyx; The vertebrae of the spinal column are responsible for protecting the spinal cord, which is a bundle of nerves that relays messages between the brain and the rest of the body. Common Types Of Fractured Vertebrae Injuries. The manatee and the two-toed sloth have only SIX cervical vertebrae, the ant bear has EIGHT cervical vertebrae and the three-toed sloth has NINE cervical vertebrae. The regional vertebrae increase in size as they progress downwards but become smaller in the coccyx. There are thirty-three vertebrae in the human vertebral column—seven cervical vertebrae, twelve thoracic vertebrae, five lumbar vertebrae, five fused sacral vertebrae forming the sacrum and three to five coccygeal vertebrae, forming the coccyx. There is a significant difference in quality, comfort and durability between the two. Naturally fused vertebrae can exist anywhere in the backbone and are actually a rather common type of spinal abnormality. In the images, the cushion on the top is the original one I purchased in Feb 2019. The vertebral column (spine or backbone) is a curved structure composed of bony vertebrae that are interconnected by cartilaginous intervertebral discs.It is part of the axial skeleton and extends from the base of the skull to the tip of the coccyx. The difference between the two is very noticeable and quite laughable. 4 The triangular sacrum forms joints between the lumbar vertebrae and the hip bones. The human skeleton makes up about 20 percent of your body mass, providing anchor points for your muscles, tendons and ligaments and protecting your brain, spinal column and internal organs. Although the tail lacks bones, it … ... How Many Cervical Vertebrae Are There? When a disc ruptures, it is referred to as a herniated disc, which can cause significant pain. In the images, the cushion on the top is the original one I purchased in Feb 2019. The length of the coccyx has no effect on the body’s function. It resembles a miniature sacrum in shape. There are small holes (foramen) along both sides of the sacrum that are left over when individual vertebrae fuse together. The lowest vertebrae (sacrum and coccyx) are fused together and don’t move. Spinal anatomy is a remarkable combination of strong bones, flexible ligaments and tendons, large muscles and highly sensitive nerves. There are a number of common broken vertebrae injuries in the back area, many of which will be discussed in the next section. The vertebrae, or bony building blocks of the spine, are cushioned by gel-like discs in between the vertebrae. The irregularly shaped bones form the roughly S-shape of the spinal cord. Giraffes and humans have SEVEN vertebrae in their necks. Thoracic vertabrae T1 - T12 vertebrae of the upper body (thorax) Lumbar vertebrae L1 - L5 vertebrae of the lower back Bones of the sacrum S1 - S5 vertebra within the pelvic girdle. 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