When _______ occurs, the sperm cell unites with an ovum.
Fill in the blank(s) with the appropriate word(s).
fertilization
Fertilization is the union of a sperm cell with an ovum.
Health Professions
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An increase in blood pressure that commonly occurs with aging is physiologically exacerbated by:
A) a compensatory increase in preload and cardiac ejection fraction. B) a decrease in stroke volume due to age-induced cardiomyopathy. C) an overproduction of collagen and decreased quantities of elastin. D) the patient's noncompliance with his or her antihypertensive drugs.
Health Professions
The QRS complex represents which of the following?
a. Atrial depolariza-tion c. Ventricular repolar-ization b. Ventricular depo-larization d. Threshold potential
Health Professions