Which of the following activities would fatigue your hand muscles the fastest?
A) Throwing a ball in the air and catching it as many times as you can
B) Bouncing a ball on the floor as many times as you can
C) Squeezing a ball as hard as you can without stopping
D) Alternately squeezing a ball then relaxing
C
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Which structure is often referred to as the "Adam's apple"?
A. Vocal cords B. Epiglottis C. Thyroid cartilage D. Thyroid gland E. Cricoid cartilage
The pulmonary stretch receptors:
a. stimulate inspiration b. inhibit inspiration c. are inhibited by expiration d. both B and C above
Which of the following is a trace mineral?
A) chloride B) sodium C) calcium D) iron E) magnesium
Conscious initiation of muscle contraction is controlled by
a. the spinal cord. b. the brain stem. c. the cerebral cortex. d. the thalamus. e. none of these answers.