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Final
Week 7-13
Question | Answer |
---|---|
Acetylcholine is in the same class of neurotransmitters as A: serotonin. B: histamine. C: dopamine. D: none of the above. | D. Acetylcholine is the chief neurotransmitter of the parasympathetic nervous system. |
Serotonin is an example of a(n): A: amino acid neurotransmitter. B: amine neurotransmitter. C: acetylcholine derivative. D: neuropeptide neurotransmitter. | B: amine neurotransmitter. |
No impulse can be sent through a neuron: | during the relative refractory period. |
Sympathetic responses generally have widespread effects on the body because: | preganglionic fibers synapse with several postsynaptic fibers. |
Which of the following statements is not true of the pineal gland? A: It is located on the dorsal aspect of the diencephalon. B: Melatonin is stimulated by the presence of sunlight. C: It produces melatonin. D: All of the above | D: All are TRUE. |
Accommodation for near vision necessitates: A: an increase in the curvature of the lens. B: constriction of the pupils. C: convergence of the two eyes. D: all of the above. | D |
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: | hematopoietic stem cells. |
Which are the two baroreceptors that are located near the heart? | aortic baroreceptors and carotid baroreceptors |
Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in | cytolysis. |
The lymphatic system serves various functions in the body. The two most important functions of this system are | fluid balance and immunity. |
Which helps determine the amt of O2 that diffuses into the blood each min? A: total functional surface area of the respiratory membrane B: Alveolar ventilation C:oxygen pressure gradient between alveolar air and incoming pulmonary blood D: All | D |
Which of these is not an example of mechanical digestion? A: Moistening the food B: Changing food from large to small particles C: Propelling food through the digestive tract D: All of the above | A: Moistening the food |