Cat whiskers are known as ____________
Fill in the blank(s) with correct word
vibrissae
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When the ventricular walls contract,
A. the tricuspid valve opens and the mitral valve closes. B. the mitral and tricuspid valves open. C. the mitral valve opens and the tricuspid valve closes. D. the mitral and tricuspid valves close.
A patient with essential hypertension might have pressures of 200/120 mm Hg. This hypertensive state could result in all of the following changes except ________.
A) increased work of the left ventricle B) increased incidence of coronary artery disease C) increased damage to blood vessel endothelium D) decreased size of the heart muscle
During the ________ period in a muscle cell there is no possibility of generating another action potential
A) relaxation B) contraction C) relative refractory D) absolute refractory
The abdominal aorta splits into which vessels?