1, Which of the following pairings between ligand and receptor is NOT correct?

1, Which of the following pairings between ligand and receptor is NOT correct?

Select one:

a. norepinephrine: beta adrenergic

b. norepinephrine: muscarinic cholinergic

c. epinephrine: alpha adrenergic

d. ACh: nicotinic cholinergic

2, Ganglia contain the cell bodies of which of the following?

Select one:

a. somatic motor neurons

b. preganglionic autonomic neurons

c. postganglionic autonomic neurons

d. sensory neurons

e. More than one of the above

3, If you see varicosities along an axon, you know you are looking at a(n)

Select one:

a. sympathetic neuron.

b. parasympathetic neuron.

c. somatic motor neuron.

d. interneuron.

e. Either A or B 

4, Which of the following characteristics differentiates skeletal muscle from both cardiac and smooth muscle?

Select one:

a. ability to contract

b. appears striated under the microscope

c. has the ability to generate force

d. movement is controlled by a somatic motor neuron

e. energy requirement for contraction

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