Air entering the body is filtered, warmed, and humidified by the
A) upper respiratory tract.
B) lower respiratory tract.
C) lungs.
D) alveoli.
E) bronchioles.
Answer: A
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Which of the following activities would fatigue your hand muscles the fastest?
A. Squeezing a ball as hard as you can without stopping B. Alternately squeezing a ball then relaxing C. Bouncing a ball on the floor as many times as you can D. Throwing a ball in the air and catching it as many times as you can
Stimulation of the heart via the sympathetic nerves would
A. decrease heart rate. B. decrease stroke volume. C. increase the force of ventricular contraction. D. increase end-systolic volume. E. not affect heart rate and force of contraction.
You are a new pediatrician at an office where you've inherited cases from a previous doctor and are sitting down to go through case files. Today you'll be seeing Trevor, a toddler who has been diagnosed with a disease called megacolon. Back in medical school you learned that megacolon can be characterized by partial paralysis of the the nerves found within the wall of the GI system. Which of the following is likely to be among Trevor's symptoms?
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The popliteal region is best seen from a(n) ________ view.
A. anterior ?B. lateral ?C. superior ?D. inferior ?E. posterior