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Next: Verify Cancel 1. Enter Responses> 2. Verify& Submit > 3 This exam contains 62 questions for 360 points total. Once you begin the exam you will have 120 minutes to complete it. Good luck! Multiple choice section The first 35 questions are multiple choice. They are worth 4 points each. Select the best answer for each question! 1. What structure(s) in the heart is(are) innervated by cranial nerve X? (4 points) AV node only O SA node only AV node and SA node Gabriella is a 55-year-old female who was found to have a stenosis (blockage) in her circumfle artery. The blood supply to which side of her heart will be affected? 2. (4 points) Left Right 3. The bicuspid valve separates what two structures? (4 points) O Left atrium and left ventricle Right atrium and right ventricle Left ventricle and aorta Right ventricle and pulmonary trunk What is the major function of the chordae tendineae? 14 points) 4 o keep the semilunar va o prevent the semilunar valves from o To keep the AVvalves open To prevent the AV valves from opening O 5. What type of blood vessel is the aorta? (4 points) O Arteriole O Elastic artery O Muscular artery o Learn more about the transition to EEE+ Canvas

Explanation / Answer

1.) AV node & SA node- right vagus (X) innervates SA node & left vagus innervates AV node. But there can be anatomical overlapping.

2.) Left - because it supplies basically to the left atrium & ventricle.

3.) Left atrium & left ventricle- bicuspid valve separates left atrium & ventrucve.

4.) To prevent AV valves from opening- main function is to limit the motion of AV valves.

5.) Elastic artery.

6.) 1st option

7.) Inferior mesenteric artery

8.) Fenestrated capillaries.

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