Which white blood cells function primarily as phagocytotic cells?
A. Basophils and neutrophils
B. Neutrophils and monocytes
C. Eosinophils and monocytes
D. Monocytes and lymphocytes
Answer: B
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The layers of the heart wall from superficial to deep are: __________.
epicardium, myocardium, and endocardium myocardium, endocardium, and epicardium endocardium, myocardium, and epicardium epicardium, endocardium, and myocardium
Which male reproductive structure is the start of the male reproductive tract in which spermatozoa exist in a sheltered environment that is precisely regulated by the surrounding epithelial cells?
A. ampulla B. ductus deferens C. ejaculatory duct D. epididymis
The renal buffering system helps maintain acid-base balance through:
a. Excretion of ammonium ions b. Excretion of bicarbonate c. Recovery of hydrogen ions d. Recovery of sodium
After a meal, blood glucose levels rise and stimulate the release of insulin. Of which type of stimulation is this an example?
A. Neural B. Hypothalamic C. Humoral D. Hormonal