Name ID# DATE DIRECTIONS: ANSWER EACH OF THE FOLLOWING MULTIPLE CHOICE ON THE SC
ID: 270261 • Letter: N
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Name ID# DATE DIRECTIONS: ANSWER EACH OF THE FOLLOWING MULTIPLE CHOICE ON THE SCANTRON CARD, WRITE THE REMAINDER ON THE TEXT BOOKLET Synaptic vesicles contain neurotransmitters and are present in the A. Dendrites B. Cell body C. Axolemma D. Presynaptic terminals or terminal boutons E. Trigger zone 1. 2. Dendrites Are the input part of the neuron B. A. Conduct action potentials away from the cell body C. Are generally long and unbranched D. Form synapses with the microglia E. Contain the trigger zone Neurons that have a single axon and a single dendrite are A. Unipolar B. Bipolar C. Multipolar D. Pseudopolar E. Monopolar 3. Schwann cells differ from oligodendrocytes in which of the following ways? A. 4. Schwann cells form myelin; oligodendrocytes do not Oligodendrocytes are only found in the PNS: Schwann cells are only found in the CNS Schwann cells form sheath around several axons, while oligodendrocytes form sheaths around only one axon Schwann cells form a myelin sheath around a portion of only one axon, while oligodendrocytes can surround portions of several axons None of these choices are true differences B. C. D. E.Explanation / Answer
1. D. Pre synaptic nerve terminals.
Neorotransmitters are packed in presynaptic nerve terminals which are the terminal part of axon of neuron.
2. A. Are input part of neuron.
Dendrites are highly branched and small processes present on the cell body which receive impulse and carry it towards cell body.
3. B. Bipolar neuron.
Neuron which has one axon and one sense in is called bipolar neuron.
4. D. Schwann cells can form a myelin sheath around a portion of only one axon, while oligodendrocytes can surround portions of several axons.
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