The process of filtration occurs in the:
A) distal tubule. B) proximal tubule. C) collecting duct. D) renal corpuscle.
Answer: D
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The hormone produced by the pars intermedia of the adenohypophysis during early childhood is
A) FSH. B) ADH. C) TSH. D) MSH. E) ACTH.
The bending movements of cilia and flagella
a. are associated with microtubules and kinesin b. involve the alternate assembly and disassembly of actin filaments c. are produced when dynein motors pull adjacent microtubule doublets past each other d. involves dynein action on microfilaments e. involves myosin action on intermediate filaments
Localized vasodilation in an inflamed area is brought about by the release of ____ from ____
a. histamine; mast cells b. opsonins; B lymphocytes c. interleukin 1; mast cells d. leukocyte mediator; phagocytes e. prostaglandins; phagocytes
An infection may occur in a tissue injury. Why?
a. The skin and mucous membranes are body's first line of defense, and are mostly impenetrable to microorganisms unless broken. b. The increased availability of nutrients allows microorganisms to replicate. c. Once microorganisms gain entry to the body through a wound, they will always cause an infection. d. The increased availability of nutrients allows microorganisms to replicate. The skin and mucous membranes are body's first line of defense and are mostly impenetrable to microorganisms, unless broken or damaged by tissue injury.