The binding of ________ to a nicotinic receptor of a muscle fiber will ________ it

A) monoamine oxidase; inhibit
B) norepinephrine; excite
C) acetylcholine; inhibit
D) acetylcholine; excite
E) acetylcholinesterase; excite


D

Anatomy & Physiology

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What can cause the depolarization at synapses?

a. activation of ionotropic glutamate receptors b. activation of voltage gated Na+ channels c. activation of ligand gated K+ channels d. release of Na+ ions from pre?synaptic membrane

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A connective tissue is composed of cells and a(n) __________ that consists of fibers and ground substance.

Fill in the blank(s) with the appropriate word(s).

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Isotopes have different numbers of ________; thus they also have different ________

A) protons; atomic numbers B) neutrons; atomic masses C) electrons; atomic numbers D) protons; atomic masses E) neutrons; atomic numbers

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Which one of the following is continuous with the esophagus?

A) nasopharynx B) oropharynx C) linguopharynx D) laryngopharynx E) esophagopharynx

Anatomy & Physiology