When ACh binds to nicotinic receptors, it
A. always produces an excitatory response.
B. always produces an inhibitory response.
C. sometimes excites and sometimes inhibits the target cell depending on the subtype of receptor.
D. sometimes excites and sometimes inhibits the target cell depending on the extracellular fluid surrounding the cell.
A
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The role of the ________ is to trap and remove bacteria or other foreign pathogens entering the throat
A) thymus B) spleen C) tonsils D) lymph node
The capacity of a muscle cell to shorten forcefully is known as
A. contractility. B. excitability. C. extensibility. D. elasticity. E. flexibility.
All of the following will normally be found in the filtrate EXCEPT
A) potassium B) urobilinogen C) glucose D) erythrocytes
Many muscles are named for their location (origin and insertion) in the body, particularly in relation to bones. In what body region would you expect the frontalis muscle to originate?
A. The abdominal region B. The cranium C. The pelvic region D. The thoracic region