Structure I is composed of





A) actin and perimysium.

B) actin and myosin.

C) troponin and tropomyosin.

D) only myosin heads.

E) acetylcholine and cholinesterase.


B) actin and myosin.

Anatomy & Physiology

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The functional units of kidneys where blood is filtered and urine produced are called

A) pyramids. B) nephrons. C) calyces. D) lobules. E) lobes.

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A patient with prerenal acute renal failure would MOST likely present with:

A) confusion and hypertension. B) joint pain and bladder distention. C) hypotension and tachycardia. D) peripheral edema and hematuria.

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Secretion of insulin causes

A) a decrease in the permeability of cell membranes to glucose. B) an increase in the breakdown of glycogen to release glucose. C) an increase in the concentration of blood glucose. D) a decrease in the concentration of blood glucose.

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At the end of inspiration and at the end of expiration, intrapleural pressure is always equal to atmospheric pressure

Indicate whether the statement is true or false

Anatomy & Physiology