Question 1
In red bone marrow newly formed blood cells enter the circulation. You would expect to see many ________ type of capillaries in red bone marrow.
◦ continuous capillaries
◦ metarterioles
◦ sinusoid capillaries
◦ fenestrated capillaries
Question 2
The aorta receives the full force of blood exiting the heart during ventricular systole. Which of the following statements best describes the adaptive anatomy of the aorta?
◦ Elastic fibers are extensive in the tunica media of the aorta and dampen the pulse pressure generated by the heart.
◦ The tunica external of the aorta is nearly absent compared to other vessels.
◦ Smooth muscle is relatively thin in the aorta to increase lumen size and systemic blood flow.
◦ The aorta's tunica media is thick with dense regular connective tissue to withstand the blood's pressure.
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