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ERICHELLE

physio weeks 7-13

QuestionAnswer
True or False: If the threshold potential is surpassed, the full peak of the action potential is always reached. True
Neurotransmitters are released in a synapse and bind to: a)presynaptic terminals. b)the synaptic cleft. c)the base of the axon. d)receptors on the postsynaptic neuron. d)receptors on the postsynaptic neuron.
What is the principle of autonomic antagonism as it relates to the autonomic nervous system? sympathetic impulses tend to stimulate an effector, parasympathetic impulses tend to inhibit it.
Afferent nerves or fibers are found only in the _____ nervous system. a)sensory b)autonomic c)central d)Both A and B are correct. d)Both A and B are correct.
The heart begins beating in the fetus at about what stage of development? a)Fourth month b)Second month c)After about 4 weeks d) After about 2 weeks c)After about 4 weeks
Hyperpnea means a(n) a)decrease in breathing. b)increase in breathing. c)temporary cessation of breathing at the end of a normal expiration. d)repeated sequence of deep gasps. b) increase in breathing.
The final step in lipid transport by the intestines is the formation of a)micelles. b)chylomicrons. c)bile. d)sodium bicarbonate. b)chylomicrons.
Which of the following is not true of enzymes? a)They accelerate chemical reactions. b)They change chemically and are in the end products of the reaction. c)They are vital to chemical reactions. d)Many contain vitamins in their structure. b)They change chemically and are in the end products of the reaction.
The hormone that stimulates the gallbladder to release bile is cholecystokinin.
The enzyme pepsin begins the digestion of: protein.
Created by: erichellewhite
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