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14 Cards in this Set
- Front
- Back
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ANS (autonomic nervous system) takes care of the...
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...takes care of the smooth muscles (GI system and Vascular), cardiac muscles and glandular tissue.
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Hypothalamus
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the control center
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almost all drugs are aimed at the...
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ANS
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Sympathetic System
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- "Fight or Flight" system
- It is energy consuming - Typically a fast reacting system - Fairly wide spread (feel the effects of the ANS across your body) |
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Parasympathetic System
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- Functions in nonstressful conditions
- Rest and relaxation - Energy conserving - Slow reacting - Very localized |
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Most Organs have Sympathetic and Parasympathetic
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They work at the same time, kind of in percentages where one system dominates the other.
Heart Ex.: Stressful - heart rate speeds up (sympathetic), Calm - heart slows down (parasympathetic) |
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somatic nervous system
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The part of the peripheral nervous system associated with the voluntary control of body movements via skeletal muscles.
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Hypothalamus
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part of brain responsible for activities of the Autonomic Nervous System (AMS).
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Two neuron motor supply of the ANS...
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- Preganglionic - 1st neuron is ALWAYS in Central Nervous System (CNS)
- Postganglionic - 2nd Neuron is ALWAYS in the Peripheral Nervous System (PNS) |
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Preganglionic
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1st neuron of the ANS. Its ALWAYS in Central Nervous System (CNS'
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Postganglionic
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- 2nd Neuron of the ANS. It is ALWAYS in the Peripheral Nervous System (PNS)
- Has a Motor Ganglion (the ones we saw before were sensory ganglion) |
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Splanchnic nerves
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sympathetic neurons heading to the gut
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Postganglionic neurons get to the ------ by:
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- Hooking a ride with the Spinal Nerves to get to target organs, like the limbs
- In the limbs is going to smooth mm and vessels - Sweat glands - Skin - As far as we no, there are only Sympathetic nn going to limbs (NO parasympathetic) - With it's own named nerves - Splanchnic nerves (sympathetic neurons heading to the gut) |
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Preganglionic neuron in CNS
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- For sympathetic supply its in T1 thru L2
- For Parasympathetic its brainstem or sacral region S2, S3, S4 |
