What structure prevents the backflow of lymph in some lymphatic vessels?
A) lacteals
B) lymph nodes
C) valves
D) tight junctions
E) desmosomes
Answer: C
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Siegfried experiences a hemorrhage in an artery, and now blood is leaking out of the resulting hole. His blood pressure decreases. Draw a flow chart illustrating the cardiovascular reflex responses that follow to compensate for the drop in blood pressure.
What will be an ideal response?
Dual innervation of organs by both branches of the autonomic nervous system allows a fine degree of control over these organs
Indicate whether the statement is true or false
The ________ does not belong to the femur.
A. medial condyle B. greater trochanter C. lesser trochanter D. fovea capitis E. anterior border
After the precapillary sphincter, blood enters a(n)
A) venule. B) anastomosis. C) vein. D) arteriole. E) thoroughfare channel.