A swishy murmur heard between the second and first heart sounds is indicative of a(n) ____________ valve
a. insufficient semilunar
b. insufficient AV
c. stenotic semilunar
d. stenotic AV
e. Either a or d correctly completes the sentence.
B
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Synthesis of a protein stops when
A. the ribosome becomes fatigued. B. any of three specific anticodons are encountered in the mRNA. C. there is no more DNA. D. any of three "stop" codons are encountered in the mRNA.
Food is pushed along the esophagus by rhythmic, muscular contractions called _________
Fill in the blank(s) with the appropriate word(s).
Stimulation of the sympathetic nervous system and epinephrine release lead to an increase in airway resistance
Indicate whether the statement is true or false
The outermost layer of the epidermis is keratinized and known as stratum ________
A) basale B) granulosum C) corneum D) spinosum