Innate defenses include:
1.antibody production.
2.activated T-lymphocytes.
3.inflammation.
4.T-helper cell function.
3
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Puffer fish poison blocks voltage-gated sodium channels like a cork. What effect would this neurotoxin have on the function of neurons?
A) Neurons would depolarize more rapidly. B) Action potentials would lack a repolarization phase. C) The absolute refractory period would be shorter than normal. D) The axon would be unable to generate action potentials. E) None, because the chemically gated sodium channels would still function.
Which of the choices below is not a function of testosterone?
A) stimulates the male pattern of development B) stimulates protein synthesis C) contributes to male sexual behavior and spermatogenesis D) stimulates mammary gland development
Which of the following connective tissue wrappings contains the entire nerve?
A) fascicle B) epineurium C) endoneurium D) perineurium E) neurilemma
Autoregulation refers to
A) maintaining constant GFR. B) actions of the parasympathetic nervous system. C) secretion of atrial natriuretic peptide at a constant rate. D) secretion of renin at a constant rate.