The brachial artery is the major artery in your upper arm. The figure below shows the blood pressure in the brachial artery of an average young adult, as it oscillates between the systolic pressure (120 mm Hg) and the diastolic pressure (75 mm Hg) .
Superimposed on the right side of the graph is a tracing of the pressure in the left ventricle, which drops to close to zero mm Hg during diastole. What prevents the blood pressure in the brachial artery from similarly dropping to almost zero during diastole?
A) Forceful closing of valves in the subclavian and brachial arteries propels the blood forward during diastole.
B) Recoil of elastic fibers in the aorta propels the blood forward during diastole.
C) Forceful closing of the aortic semilunar valve propels the blood forward during diastole.
D) Rhythmic contraction of smooth muscle tissue in the subclavian and brachial arteries propels the blood forward during diastole.
E) Inhaling and exhaling propels the blood forward during diastole.
Correct Answer:
Verified
Q33: What would happen if your SA node
Q34: Refer to the diagram below. 
Q35: In the blood clotting cascade mechanism, what
Q36: The cardiac output is the volume of
Q37: During your annual physical, a nurse takes
Q39: You are taking a lab practical exam,
Q40: If an arteriole has a radius
Q41: The figure below shows data for three
Q42: Susie just squished a cockroach and its
Q43: A mountain climber was rescued after spending
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents