Which of these is a hormone that lowers blood volume and blood pressure?
A) angiotensin-II (A-II) B) renin
C) atrial natriuretic peptide (ANP) D) aldosterone
Answer: B
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Which type of tooth is responsible for crushing and grinding?
A. Incisor B. Canine C. Cuspid D. Molar
Pacemaker activity by the Purkinje fibers is an example of an ectopic focus
Indicate whether the statement is true or false
The main advantage of antagonistic control of visceral organs by the sympathetic and parasympathetic nervous systems is it
a. saves energy. b. economizes on volume requirements since organs can constrict when they're not being used. c. allows precise regulation of the activity of the organs so innervated. d. all of these. e. none of these.
Which diagnostic test allows internal visualization of a developing fetus during gestation?
A. Colposcopy B. Ultrasound C. Mammogram D. Pap smear