Blocking of the normal transfer of vibrations through the middle ear is called ________.
Fill in the blank(s) with the appropriate word(s).
conductive deafness
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Your professor says something profoundly funny. You are tempted to laugh but because you failed to brush your teeth this morning all you can do is to manage a closed-mouth smile. What muscle are you primarily using?
A. Levator labii superioris B. Buccinator C. Platysma D. Risorius E. Mentalis
Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?
A. Left atrioventricular valve B. Aortic semilunar valve C. Right atrioventricular valve D. Pulmonary semilunar valve E. None of the choices is correct.
A sudden increase in pressure within the carotid sinus leads to
a. increased sympathetic nerve activity. b. increased sympathetic nerve activity and decreased parasympathetic nerve activity. c. decreased sympathetic nerve activity and increased parasympathetic nerve activity. d. decreased sympathetic nerve activity. e. none of these answers.
The ________ system rids the body of indigestible food residue in feces while the ________ system removes nitrogen-containing metabolic waste in urine
A) urinary; digestive B) cardiovascular; urinary C) digestive; urinary D) reproductive; digestive