Pain, heat, and cold are detected by __________.
A. tactile (Meissner) discs
B. tactile corpuscles
C. lamellar (Pacinian) corpuscles
D. free nerve endings
E. end (Krause) bulbs
D. free nerve endings
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The study of the flow of energy and its transformations is called
A) energetics. B) glycolysis. C) cellular respiration. D) thermodynamics. E) metabolism.
The portion of the nervous system that has voluntary control over skeletal muscles is the _____________ division
A. autonomic motor B. somatic sensory C. somatic motor D. visceral sensory
What pigment is produced within the skin and protects from UV radiation?
A. Carotene B. Keratin C. Melanin D. Hemoglobin
When faced with a stressful situation, John's body began sweating. Why did this occur?
a. Activation of the parasympathetic system. b. Activation of the sympathetic system. c. Activation of the endocrine system. d. Activation of the nervous system.