Chapter 7- Axial Skeleton

19. The three parts of the sternum are the

manubrium, body, and xiphoid process

8. The _______ suture is the articulation between the

Coronal suture: between frontal and parietal bones Lambdoid suture: between occipital and parietal Sagittal: between parietal bones Squamous: between temporal and parietal

5. Which set includes only bones of the cranium?

CRANIAL BONES: frontal, parietal, temporal, sphenoid, ethmoid, occipital

17. Which features are found only on thoracic vertebrae?

Costal facets for ribs

21. Changes in the vertebrae as one moves down the back from C1 through T12 include

True ribs: Ribs 1-7; articulate anteriorly with the sternum via costal cartilages False ribs: Ribs 8-12; their costal cartilages do not attach directly to the sternum Floating ribs: False ribs (pairs 11 and 12) that do not articulate with the sternum

4. Which bone is not paired?

UNPAIRED:(skull) ethmoid, frontal, occipital, sphenoid (face) vomer and mandible

7. The only unpaired bones of the face are the

Vomer and mandible

18. The thoracic cage includes

-thoracic vertebrae posteriorly -ribs laterally -sternum anteriorly

11. What is the correct order for the vertebral regions, from superior to inferior?

7 Cervical, 12 thoracic, 5 lumbar

12. The vertebral column includes ___ cervical, ___ thoracic, and ___ lumbar vertebrae.

7, 12, 5

14. Which cervical vertebra is also known as the vertebra prominens?

7th cervical vertebra

2. The skull consists of _____ cranial bones and _____ facial bones.

8 cranial bones, 14 facial bones

1. The axial skeleton includes all but which of the following components?

An axial skeleton contains: skull, vertebral column, and thoracic cage Appendicular skeleton: shoulder and hip bones and those of the upper and lower extremities

10. Which bone is not part of the facial complex?

CRANIAL BONES: frontal, parietal, temporal, sphenoid, ethmoid, occipital

3. Which is not a cranial bone?

FACIAL BONES : maxillae, nasal, lacrimal, zygomatic, palatine, inferior conchae, vomer and mandible

6. Which set includes only bones of the face?

FACIAL BONES : maxillae, nasal, lacrimal, zygomatic, palatine, inferior conchae, vomer and mandible

15. Which feature is unique to the axis?

It has a dens and acts as a pivot for the rotation of the atlas and the skull

9. Which cranial fossa supports the cerebellum?

Posterior cranial fossa

20. Ribs 11 and 12 are called floating ribs because they

do not articulate with the sternum

16. The _________ provide passageways for spinal nerves to exit the vertebral column and travel to other parts of the body.

intervertebral foramina

13. The vertebral processes that are most easily palpated along the midline of the back are the _____ processes.

spinous