Term
| What sections of the spinal cord are the pre-ganglionic neurons of the sympathetic nervous system located? |
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Definition
| The lumbar and thoracic portions of the spinal cord |
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Term
| What is the location of the ganglia of the sympathetic nervous system? |
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Definition
| close to the spinal cord so that pre-ganglionic axons are short and the post-ganglionic axons are long |
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Term
| What organs are innervated by the sympathetic nervous system? |
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Definition
| Heart, bronchial smooth muscle, eye, urinary bladder, and gastrointestinal tract |
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Term
| What neurotransmitter do the pre-ganglionic fibers release in the SNS? |
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Definition
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Term
| What neurotransmitter do the post-ganglionic fibers release for the most part in the SNS? |
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Definition
| Norepinephrine or Noradrenaline |
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Term
| What is the exception to the rule that norepinephrine is released from post-ganglionic fibers in the SNS? |
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Definition
| Acetylcholine is released from post-ganglionic sympathetic nerves supplying the sweat glands and piloerector muscles. |
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Term
| What neurotransmitters are released by the Adrenal medulla and in what percentages? |
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Definition
Epinephrine and norepinephrine
80% and 20% respectively |
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