Acetylcholinesterase
a. has enhanced activity from organophosphates.
b. inactivates a neurotransmitter.
c. is a neurotransmitter.
d. stimulates an excitatory postsynaptic potential.
e. triggers the release of sodium into postsynaptic cells.
B
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Brain blood flow autoregulation ________
A) is less sensitive to pH than to a decreased oxygen level B) is controlled by cardiac centers in the pons C) is abolished when abnormally high CO2 levels persist D) causes constriction of cerebral blood vessels in response to a drop in systemic blood pressure
A 29-year-old man presents with bizarre behavior and profuse sweating. His wife tells you that he has type 1 diabetes and that he took his insulin today. During your assessment, you will MOST likely find that the patient is:
A) dehydrated. B) tachypneic. C) hyperglycemic. D) breathing deeply.
Which of the following is not a characteristic of diabetes mellitus?
A. Hypoglycemia B. Polyuria C. Glycosuria D. Polydipsia E. Polyphagia
Thin collagen fibers that form a sponge-like framework for organs like the spleen and lymph nodes are ________ fibers.
Fill in the blank(s) with the appropriate word(s).