Which of the following descriptions of a preganglionic neuron is NOT correct?
a) Has axons that exit the CNS in a cranial or spinal nerve.
b) Has myelinated axons.
c) Forms the first part of an autonomic motor pathway.
d) Has its cell body in the brain or spinal cord.
e) Forms gap junctions with postganglionic neurons in autonomic ganglia.
e
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The effect that a neurotransmitter has on the postsynaptic membrane depends on the
A) frequency of neurotransmitter release. B) nature of the neurotransmitter. C) characteristics of the receptors. D) quantity of neurotransmitters released. E) All of the answers are correct.
An elderly patient tells the nurse that she has been very tired lately and has difficulty walking to her mailbox without getting very short of breath. The nurse notes the mucous membranes are pale. The patient states that since her husband died three months ago, she has not been eating well. The physician confirms that she has iron-deficiency anemia. How are the patient's clinical
manifestations and iron-deficiency anemia related? What will be an ideal response?
Which of the following works with calcitrol to maintain bone homeostasis?
A) calcitonin B) calcitriol C) parathyroid hormone D) thyroid hormone E) growth hormone
AIDS is caused by infection of ____ by HIV
a. monocytes b. basophils c. T lymphocytes d. B lymphocytes