4. The aortic semilunar valve has ? pocketlike flaps of tissue.

3. Which heart sound is higher pitched and shorter in duration? Lub or Dup Closure of what valves (and the resulting vibrations) produce this sound?

1. How would a stenotic bicuspid valve affect the movement of blood from the left atrium to the left ventricle?

3. Using a textbook as necessary, list the major veins through these pathways in a human: a. Blood as it travels from the plantar arch to the right atrium. b. Blood as it travels from the right median cubital vein to the right atrium. I U T' T2

8. We discussed fish, amphibian, and mammalian hearts, but didn’t spend much time on reptiles and birds. Please compare and contrast the anatomy of the heart ina) most reptiles (turtles, snakes, lizards) in terms of number of atria, number of ventricles, total number of chambers, and development of the aorta from aortic arches (left, right, or both). Use a table, not text. Also, include a drawing showing the basic template of dorsal aorta, ventral aorta, and six aortic arches, along with drawings showing the modified patterns of aortic arches in a-d above.

5. Most of the exchange of gases and nutrients between blood and tissues occurs in the __level. A. small elastic artery B. venule C. capillary bed D. small muscular arteriole

2. )  when you taking blood pressure one collapes the brachial artery and then reduces presure in the cuff . As blood begins to flow again one writes down that pressure which represent ?  a. systolic pressure  b. aortic pressure flow  c. disatolic pressure  d. vavle pressure

6. What is the purpose of the coronary artery? What results if there is blockage in this vessel?

21. An example of a muscular (distributing) artery is the ___________.     venae cavae     descending aorta     renal artery     none of these choices

2. How is an action potential in a contractile cardiac cell different from action potential in a pacemaker cell? (Write the phases and the channels involved for each phase).