Term
| The effectors of the ANS are? |
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Definition
| cardiac muscle, smooth muscle and glands |
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Term
| The effectors of the SNS are? |
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Definition
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Term
| How does the ANS differ from the SNS? (there are 3 areas) |
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Definition
| (1) Effectors (2) Efferent pathways (3) target response |
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Term
| Explain the efferent pathways of the ANS. |
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Definition
| (1) axons of the ANS are a two-neuron chain (a) the preganglionic (1st) neuron has a lightly myelinated axon. (cell body resides in CNS) (b) the ganglionic (2nd) neuron extends to an effector organ (outside the CNS) |
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Term
| Explain the efferent pathways of the SNS. |
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Definition
| heavily mylinated axons of the somatic motor neurons extend from the CNS to the effector (1 motor neuron) |
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Term
| Explain the neurotransmitter Effects in the ANS. |
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Definition
| (1) preganglionic fibers release ACh (2)postganglionic fibers release norepinephrine or ACh and the effect is either stimulatory or inhibitory (3) ANS effect on the target organ is dependent upon the neurotransmitter release and the receptor type of the effector |
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Term
| Explain the Neurontransmitter Effects of the SNS. |
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Definition
| All somatic motot neirons release ACh, which has an excitatory effect |
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