The nonspecific defense by which complement proteins attach to sugars or proteins on the surface of foreign cells is called complement fixation
Indicate whether the statement is true or false
TRUE
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Hypersensitivity is only a B cell-mediated response
Indicate whether the statement is true or false
Which adductor muscle of the thigh does not adduct, rotate, and flex the thigh?
A. Pectineus B. Adductor longus C. Adductor brevis D. Adductor magnus
In the condition known as complete heart block, what happens?
A) The fibrous skeleton of the heart breaks down, interfering with the passage of blood from the atria to the ventricles. B) The mitral valve leaflets calcify and close, preventing blood from being pumped efficiently by the left side of the heart. C) Coronary arteries are blocked by plaques, preventing blood and oxygen from reaching the myocardial contractile cells. D) Blood flow through the foramen ovale is blocked. E) Electrical signals from the SA node never reach the ventricles, so the contraction of the atria is not coordinated with the contraction of the ventricles.
Juvenille hormone (JH)
a. is involved in oogenesis. b. is involved in vitellogenesis. c. is involved in oogenesis and vitellogenesis. d. is not involved in either of these.