LRA 224 week 1 quiz vertebral coulomn review

How many vertebrae are in the cervical region?

7

How many vertebrae are in the thoracic region?

12

How many vertebrae are in the lumbar region?

5

How many fused vertebrae are in the sacrum?

5 fused

How many fused vertebrae are in the coccyx?

3-5 fused

What are the five main sections of the vertebral column?

Cervical, thoracic, lumbar, sacrum, and coccyx

What is the primary curve of the spine?

Thoracic and sacral

What are the compensatory curves of the spine?

Cervical and lumbar

What is the first compensatory curve to develop in children?

The cervical curve

What is kyphosis?

An exaggerated thoracic convex curvature, often called hunchback

What is lordosis?

An exaggerated lumbar concavity, often called swayback

What is scoliosis?

A lateral curvature of the spine

What connects directly to the vertebral body?

The pedicles

What extends posteriorly and meets at the spinous process?

The laminae

What is the most posterior projection of a vertebra?

The spinous process

What forms the opening in each vertebra?

The vertebral foramen

What is formed when the vertebral foramina are stacked together?

The spinal canal

What does the spinal canal contain?

The spinal cord

Below what structure does the spinal cord begin?

The medulla oblongata

What fluid surrounds the spinal cord?

Cerebrospinal fluid (CSF)

What are the two parts of an intervertebral disc?

Annulus fibrosus and nucleus pulposus

What does the annulus fibrosus form?

The outer fibrous ring

What does the nucleus pulposus form?

The soft, gel-like center

What are three functions of intervertebral discs?

They absorb shock, allow spinal movement, and separate vertebrae

How are intervertebral joints classified?

As amphiarthrodial joints

How many total vertebrae do adults typically have?

33