1. The origin site in the nerve for the conduction of nerve impulses is the:a. dendritic zoneb. axon hillockc. node of Ranvierd. terminal buttons2. An action potentialis a short distance signal, mylenationb. is a long distance signal, mylenationc. has decremental current flow, refractory periodd. has decremental current flow, mylenatione. is a long distance signal, the refractory periodand its unidirectional movement is ensured byа.3. In the CNS, the membranes that wrap around myelinated neurons are those of:a. Schwann cellsb. Oligodendrocytec. endothelial cellsd. astrocytese. Satellite Cells

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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4. The following are the functions of the brain under Central Nervous System, EXCEPT: * a. It is the main processing center of the Central Nervous System. b. It connects the Central Nervous System to the organs and limbs. c. It controls activity and thought. d. It functions as organizer and distributor of information for the body.
17. The CNS is made of the: A. Sensory and motor neurons B. Brain and spinal cord C. Spinal nerves D. Cranial nerves
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1. Which brain regions are included in Papez (1937) emotional brain? a. Cerebellum b. Lateral nucleus of the amygdala c. Stria terminalis d. Anterior thalamus 2. Which brain regions are included in Papez (1937) emotional brain? a. Cerebellum b. Lateral nucleus of the amygdala c. Stria terminalis d. Anterior thalamus
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29. Basal ganglia and cerebellum are similar in that both a. Send axons to the spinal cord b. Use ventral lateral nucleus of thalamus as a relay c. Directly feed into the supplementary motor area d. Influence cerebral cortex on the side opposite to their location. 28. A 53 year old secretary had abrupt onset of involuntary movements. Her left arm made large, violent, flailing movements that interfered with her ability to work. The most likely site of damage is a. Right globus pallidus b. Right subthalamic nucleus c. Right substantia nigra d. Left subthalamic nucleus
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33. Normally, during resting wakefulness (i.e., not moving) axons from a. ventral lateral nucleus inhibits motor areas of cerebral cortex b. Globus pallidus inhibit the ventral lateral nucleus c. Putamen inhibits globus pallidus d. Globus pallidus are not active ( do not fire action potential) 32. Lesions in the following structures typically lead to the syndromes indicated for all except a. Internal capsule- hemiplegia b. Putamen -chorea c. Subthalamic nucleus -hemiballismus d. Substantia nigra- dysdiadochocinesia

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1. The origin site in the nerve for the conduction of nerve impulses is the: a. dendritic zone b. axon hillock c. node of Ranvier d. terminal buttons