What are the 5 regions of the vertebral column how many bones are in each region?

What are the 5 regions of the vertebral column how many bones are in each region?

Answer: The adult vertebral column consists of 24 vertebrae, plus the sacrum and coccyx. The vertebrae are subdivided into cervical, thoracic, and lumbar regions. There are seven cervical vertebrae (C1–C7), 12 thoracic vertebrae (T1–T12), and five lumbar vertebrae (L1–L5).

What are the 4 regions of the spine?

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig.

What is the function of cervical spine?

The cervical spine is delicate—housing the spinal cord that sends messages from the brain to control all aspects of the body—while also remarkably strong and flexible, allowing the neck to move in all directions. The neck is connected to the upper back through a series of seven vertebral segments.

What does the cervical spine control?

C1, C2, and C3 (the first three cervical nerves) help control the head and neck, including movements forward, backward, and to the sides. The C2 dermatome handles sensation for the upper part of the head, and the C3 dermatome covers the side of the face and back of the head.

How many bones are in the cervical thoracic and lumbar vertebrae?

Seven bones in the neck—the cervical spine. 12 bones in the chest—the thoracic spine. Five bones in the lower back—the lumbar spine.

How can you tell the difference between cervical thoracic and lumbar vertebrae?

Thus, cervical vertebrae are smaller than lumbar vertebrae due to differences in the proportion of body weight that each supports. Thoracic vertebrae have sites for rib attachment, and the vertebrae that give rise to the sacrum and coccyx have fused together into single bones.

What is a spine lumbar and sacral?

The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail. These are the five vertebra of the lower back.

What is lumbar and cervical spine?

A cervical disc is an intervertebral disc in your cervical spine (neck) and the lumbar disc is the intervertebral disc in your lumbar region (lower back).

What makes up the sacrum and coccyx vertebrae?

Sacrococcygeal vertebrae More often than not, the sacrum and coccyx are studied together as the sacrococcygeal region. The sacrum consists of 5 bones that fuse together to form a single bone, while the coccyx consists of 3-5 bones that typically do the same. In females, the sacrum is short and wide, whereas in males, it is long and narrow.

Are there nerves in the thoracic and cervical spine?

8 cervical (C1-C8) nerves emerge from the cervical spine; cervical means of the neck (there are 8 cervical nerves, but only 7 cervical vertebra) 12 thoracic (T1-T12) nerves emerge from the thoracic spine; thoracic means of the chest. 5 lumbar (L1-L5) nerves emerge from the lumbar spine; lumbar means from the lower back region.

Where does the lumbar spine meet the sacrum?

The last lumbar vertebra in your lower back meets the sacrum. Below the sacrum or sacral spine is the coccyx, your tailbone. Photo Source: Shutterstock.These bones are indeed made for walking, running, sitting, and lifting.

Which is larger the thoracic vertebrae or the cervical vertebrae?

Beneath the last cervical vertebra are the 12 vertebrae of the Thoracic Spine. These are abbreviated T1 through T12 (top to bottom). T1 is the smallest and T12 is the largest thoracic vertebra. The thoracic vertebrae are larger than the cervical bones and have longer spinous processes.