20 terms

Vertebral Column and Thoracic Cage

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The vertebral column encloses and protects the ________ ________.
spinal cord
The number of separate bones in the vertebral column of an adult is ______.
26
The seventh cervical vertebra is called the __________ ___________ and has an obvious spinous process surface feature that can palpated.
vertebra prominens
The __________ of the vertebrae support the weight of the head and trunk.
body
The ____________ separate adjacent vertebrae, and they soften the forces created by walking.
intervertebral discs
The intervertebral foramina provide passageways for _______ ________.
spinal nerves
Transverse foramina of __________ vertebrae serve as passageways for blood vessels leading to the brain.
cervical
The first vertebra also is called the _______.
atlas
When the head is moved from side to side, the first vertebra pivots around the _____ (aka) of the second vertebrae.
dens (odontoid process)
The _________ vertebrae have the largest and strongest bodies.
lumbar
The number of vertebrae that fuse to form the sacrum is _______.
5
How many vertebra are in the cervical section? How big is it? What type of spinous process does it have? Does it have transverse foramina?
It has 7. It's small. It's at the top. It's bifid (forked). Yes.
How many vertebra are in the thoracic section? How big is it? What type of spinous process does it have? Does it have transverse foramina?
12. It's medium. It's in the middle. It points down. No.
How many vertebra are in the lumbar section? How big is it? What type of spinous process does it have? Does it have transverse foramina?
5. Large. Bottom. Blunt. No.
The adult skeleton of most men and women contains a total of ________ bones.
206
The last two pairs of ribs that have no cartilaginous attachments to the sternum are sometimes called __________ ribs.
floating
There are ________ pairs of true ribs.
7
Costal cartilages are composed of _________ cartilage.
hyaline
The manubrium articulates with the ___________ on its superior border.
clavicles
List three general functions of the thoracic cage.
Protects the heart, lungs, and some abdominal organs. It supports the bones of the shoulder girdle and arm. It helps you breathe.