5. Chemical factors that increase blood pressure include: A endothelin B. NO C.

Question

5. Chemical factors that increase blood pressure include: A endothelin B. NO C. ADH D. ANP

6. A stroke that occludes a posterior cerebral artery will most likely affect: A hearing B. vision C. smell D. higher thought processes

7. The deep femoral and the deep brachial veins drain the: A biceps brachii and hamstring muscles B. flexor muscles in the hand and leg C. quadriceps femoris and triceps brachii muscles D. intercostal muscles of the thorax

8. Vessels involved in the circulatory pathway to and from the brain are the: A brachiocephalic artery B. subclavian artery C. internal jugular vein D. internal carotid artery

9. Based on the vessels named pulmonary trunk, thyrocervical trunk, and celiac trunk, the term trunk must refer to a: A vessel in a heart wall B. vein C. capillary D. large artery from which other arteries branch

10. Collateral circulation occurs in the: A joint capsules B. cerebrum C. kidney D. myocardium

Explanation / Answer

Answer:

5. (A) endothelin

Endothelins are peptides that constrict blood vessels and raise blood pressure.

6. (B) vision

7. (C) quadriceps femoris and triceps brachii muscles

8. (D) internal carotid artery

9. (D) large artery from which other arteries branch

10. (D) myocardium

Collateral circulation is the process in which a system of small, normally closed arteries connect and start to carry blood to part of the heart when a coronary artery is blocked, or to part of the brain when a cerebral artery is blocked. These arteries can serve as alternate routes of blood supply.

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