Muscles that attach to bone at one end and skin at another include which of the following?
A. The sphincters
B. The piloerector muscles
C. The multifidus muscles
D. The muscles of facial expression
E. The lumbricals
D. The muscles of facial expression
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If the receptor on the postsynaptic membrane binds to norepinephrine, the synapse is called
A) cholinergic. B) anergic. C) adrenergic. D) synergic. E) noradrenergic.
With a family history of cardiovascular disease, which toast spread would be considered the most "heart healthy?"
A) olive oil B) butter containing butterfat C) lard (pig fat) D) margarine containing trans fats
Cadherins and integrins are examples of what type of membrane protein?
a. cell adhesion molecules (CAMs) b. collective additive molecules (CAMs) c. adhesive membrane proteins (AMPs) d. adhesive lipid molecules (ALMs) e. adhesive locking molecules (ALMs)
Pacemaker activity refers to spontaneous depolarizations resulting from
a. shifts in passive ionic fluxes accompanying b. cyclical changes in Na+-K+ pump activity c. automatic changes in channel permeability d. both a and b e. both a and c