Lab 19 - my notes/homework for lab PDF

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VERTEBRAE AND THORACIC CAGE EXERCISES

Name: ___________________________

Select the best answer and clearly write the letter for your answer choice on the blanks provided. 1. The sternum ________. A. B. C. D.

consists of only two parts, the manubrium and xiphoid process has the sternal angle located between the manubrium and body receives direct attachments from the costal cartilages of all 12 pairs of ribs articulates directly with the thoracic vertebrae

2. The sternal angle is the ________. A. B. C. D.

junction between the body and xiphoid process site for attachment of the clavicle site for attachment of the floating ribs junction between the manubrium and body

3. The tubercle of a rib ________. A. B. C. D.

is for articulation with the transverse process of a thoracic vertebra is for articulation with the body of a thoracic vertebra provides for passage of blood vessels and a nerve is the area of greatest rib curvature

4. True ribs are ________. A. B. C. D.

ribs 8–12 attached via their costal cartilage to the next higher rib made entirely of bone, and thus do not have a costal cartilage attached via their costal cartilage directly to the sternum

5. How many cervical vertebrae are there? A. 7 B. 12 C. 1 D. 6 6. How many thoracic vertebrae are there? A. 7 B. 12 C. 24 D. 9

A & P I Lab 3 (Online) Summer 2021

7. How many lumbar vertebrae are there? A. 4 B. 24 C. 9 D. 5 8. How many sacral vertebrae do physically mature adults have? A. Four vertebrae fused into one bone B. Five vertebrae fused into one bone C. Three vertebrae D. Two vertebrae 9. In children, the sacral vertebrae are formed in how many separate bones? A. 4 B. 24 C. 5 D. 1 10. The coccyx is 3 to 5 bones fused together to form one. A. True B. False 11. C8 is the last cervical vertebra, followed by the T1. A. True B. False 12. The thoracic vertebrae decrease in size and width from T1 to T12. A. True B. False 13. The function of the lumbar vertebrae are: A. support the skull B. serve as a location for attachment sites of ligaments and muscles C. insulate the spinal cord D. protect spinal cord, allow for human motion, and support body's weight 14. The sacral vertebrae have usually fused into one bone by what age? A. 25 to 26 years old B. 18 years old C. 45 years old D. 5 to 10 years old 15. There are how many ribs? A. 10 pairs B. 20 total C. 12 pairs D. 26 total

A & P I Lab 3 (Online) Summer 2021

16. The 1st __________ ribs attach to the _______ by the costal cartilages which are called the true ribs. A: 5, false ribs B: 7, sternum C: 6, diaphragm D: none of the options are correct 17. The 8th through the 12th ribs are known as the? A. True Ribs B. Floating Ribs C. Costal cartilage D. False Ribs 18. The floating ribs have no attachment to the sternum. A. True B. False 19. The false ribs attach to the costal cartilage at the 8th rib but not the sternum. A. True B. False 20. Transverse foramina are characteristic of which kind of vertebra? a) Thoracic b) Lumbar c) Sacral d) Cervical

A & P I Lab 3 (Online) Summer 2021...