The SA and AV nodes are often supplied by both the ________ and ________ arteries.
A. Marginal, anterior descending
B. Right coronary, circumflex coronary
C. Left coronary, posterior descending
D. Circumflex, anterior descending
Answer: B. Right coronary, circumflex coronary
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Indicate whether the statement is true or false
If a patient is hyperventilating and has a blood sugar level of 800 mg/100 ml, what hormone should be injected for treatment?
a. aldosterone b. insulin c. glucagon d. somatostatin e. cortisol
Hypothyroidism is usually due to dysfunction of the thyroid gland rather than the dysfunction of the pituitary gland.
Indicate whether the statement is true or false.
The AIDS virus "docks" on the helper t-cell's __________ receptor.
A) CD2 B) CD4 C) CD6 D) CD8 E) CD10