When a blood vessel is damaged, which of the following events occurs last?
A. Collagen is exposed.
B. Platelets adhere to collagen.
C. Platelets are activated.
D. Platelets begin to stick to each other and form a plug.
E. von Willebrand factor is produced.
D
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Tina is a hard-working sales clerk in a busy department store. She has stood completely still behind the check-out counter for an 8-hour shift. At the end of Tina's shift, she finds that she feels somewhat dizzy and guesses that her blood pressure is quite low. When Tina gets home she also notices that her ankles are swollen. What physiological issue is most likely to blame in this scenario?
A. High hydrostatic pressure in lower leg capillaries B. Reactive hyperemia to lower leg tissues C. High osmotic pressure in her lower leg capillaries D. Lymphatic blockage in her lower legs E. None of these, the swelling is unrelated to cardiovascular issues
Podocytes are cells with foot-like processes called pedicels. Podocytes are found in the
A. basement membrane of the glomerulus. B. visceral layer of the glomerular capsule. C. periphery of the distal convoluted tubule. D. endothelium of the glomerulus.
The pituitary gland is located in the
A) sphenoidal sinus. B) cribriform plate. C) sella turcica. D) mandibular fossa.
The medial and lateral branches of the popliteal vein drain blood from the ________
A) anterior knee B) foot and calf region C) thigh D) hip