The Frank–Starling curve shifts up and to the left in a failing heart
a. True
b. False
Indicate whether the statement is true or false
False
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Which is not a way that antigen-antibody complexes may cause elimination of the antigen?
A) opsonization B) enhancing phagocytosis C) activation of complement D) neutralization E) sensitization
If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable, what could happen?
A) The cells will swell and ultimately burst. B) The cells will lose water and shrink. C) The cells will shrink at first, but will later reach equilibrium with the surrounding solution and return to their original condition. D) The cells will show no change due to diffusion of both solute and solvent.
During the swallowing reflex __________.
a) the epiglottis closes off the glottis b) breathing rate increases c) the esophageal sphincter closes off the esophagus d) the tongue closes off the pharynx
Myosin kinase catalyzes the transfer of Pi from creatine phosphate to ADP.
Answer the following statement true (T) or false (F)