Which valve guards the base of the aorta and opens when the ventricles are contracting?
A) mitral valve
B) aortic semilunar valve
C) bicuspid valve
D) pulmonary semilunar valve
E) tricuspid valve
B
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Which of the following is a not characteristic of the female pelvis?
A) broad pelvis (low pelvis) B) coccyx points anteriorly C) enlarged pelvic outline D) bone markings not very prominent E) a more circular pelvic inlet
The loss of the neurotransmitter ____________________ in the ____________ results in Parkinson's disease
Fill in the blank(s) with correct word
A mutation is
A. always harmful to health. B. always beneficial to health. C. a change in a DNA sequence in less than 1% of a population that affects anatomy and/or physiology. D. a common genetic variant.
Dual innervation of organs with nerve fibers whose actions oppose each other enables precise control over an organ's activity, like having both an accelerator and a brake to control the speed of a car
a. True b. False Indicate whether the statement is true or false