A person exercising vigorously on a hot, humid day may develop
A. headache, muscle cramps, and nausea.
B. fatigue and dizziness.
C. heat exhaustion.
D. all of the answer choices are correct.
Answer: D
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The __________ __________ is the outermost meninx covering the brain and spinal cord.
Fill in the blank(s) with the appropriate word(s).
Peripheral resistance:
A. increases as blood viscosity increases B. decreases as blood viscosity increases C. increases with increased blood vessel diameter D. is higher in arteries than capillaries E. decreases with increasing blood vessel length
Which of the following is NOT considered part of the lower respiratory system?
a. bronchi b. pharynx c. trachea d. larynx
Contraction of the diaphragm assists in
A. flexion at the waist. B. expiration. C. inspiration. D. extension at the waist. E. All of the choices are correct.