The spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the lower back.

What are the 5 sections of the spinal column?

The spine is composed of 33 bones, called vertebrae, divided into five sections: the cervical, thoracic, and lumbar spine sections, and the sacrum and coccyx bones. The cervical section of the spine is made up of the top seven vertebrae in the spine, C1 to C7, and is connected to the base of the skull.

What are the 5 major regions of the vertebral column?

The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig.

What are the 4 functions of the vertebral column?

The vertebral column provides attachments to muscles, supports the trunk, protects the spinal cord and nerve roots and serves as a site for haemopoiesis.

What are the 5 major regions of the vertebral column quizlet?

The five major regions of the vertebral column are the cervical region, thoracic region, lumbar region, sacrum, and coccyx.

What is the spinal column?

(ver-TEE-brul KAH-lum) The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The vertebral column encloses the spinal cord and the fluid surrounding the spinal cord. Also called backbone, spinal column, and spine. Enlarge.

What are the 5 regions of the vertebral column from superior to inferior?

From superior to inferior, these are:

  • Cervical: 7 vertebrae (C1 = highest; C7 = lowest)
  • Thoracic: 12 vertebrae (T1 = highest; T12 = lowest)
  • Lumbar: 5 vertebrae (L1 = highest; L5 = lowest)
  • Sacral: 5 fused vertebrae (S1 = highest; S5 = lowest)
  • Coccygeal: 3-4 fused vertebrae (Co1 = highest; Co3 = lowest)

What bones are in the spinal column?

The spinal column is composed of a number of different segments, including the cervical (upper), thoracic (middle) and lumbar (lower) segments. The sacrum and coccyx are two sections found at the base of the spine. Cervical. The cervical region consists of seven vertebrae labeled C1 to C7, which are the smallest bones of the spinal column.

How many vertebrae are in the spinal column?

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. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.

What is L5 of the spine?

L5 spinal nerve. The L5 spinal nerve roots exit the spinal cord through small bony openings (intervertebral foramina) on the left and right sides of the spinal canal. These nerve roots join with other nerves to form bigger nerves that extend down the spine and travel down each leg.

Where is the vertebral column located?

The vertebral column, also known as the spinal column, is a flexible column that encloses the spinal cord and also supports the head. It consists of various groups of vertebrae and is divided into five different areas. An internal disk is located between each vertebra.