Term
| Cholinergic neurotransmitter |
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Definition
Ach
Pre-ganglionic sympathetic & parasympathetic
post-ganglionic parasympathetics
(exception: sweat glands, sympathetic!) |
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Term
| Adrenergic neurotransmitter |
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Definition
norephinephrine
post-ganglionic sympathetic |
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Term
a1
location?
G Protein?
Mechanism? |
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Definition
Location: smooth muscle (eye, bladder)
G Protein: Gq
Mechanism: stimulates PLC, increase IP3 and Ca2+ leading to contraction |
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Term
a2 receptors
location?
G protein?
Mechanism? |
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Definition
Location: gastrointestinal tract
G protein: Gj
Mechanism: inhibits adenyl cyclase, decrease cAMP |
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Term
B1 receptors
location?
G protein?
Mechanism? |
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Definition
location: Heart
G protein: Gs
Mechanism: simulates Adenyl cyclase, increases cAMP |
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Term
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Definition
inhibitory in heart
excitatory in smooth muscle and glands |
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Term
Male sex organs
Sympathetic and parasympathetic actions |
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Definition
Sympathetic: ejaculation (alpha receptor)
Parasympathetic: Erection (Muscarinic) |
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Term
| Bladder Sympathetic activity |
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Definition
Filling (L1-L3)
1. Relaxes detruser muscle (B2)
2. Contracts internal sphinctor (a1) |
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Term
| Bladder Parasympathetic Activity |
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Definition
Emptying (S2-S4)
1. contracts detrusor muscle (muscarinic)
2. Relaxes internal sphincter (m) |
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Term
| Pupil Sympathetic activity |
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Definition
Dilates Pupil
Contracts Radial Fibers (a1) |
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Term
| Pupil parasympathetic activity |
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Definition
Pupil constricts
contracts circular fibers (muscarinic) |
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Term
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Definition
loss of sympathetic activity
pupil constricts, droopy upper eyelid, lack of sweating on forehead, facial flushing |
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Term
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Definition
| during healing of a deep wound to the parotid gland the parasympathetic fibers join the great auricular nerve. Saliva production (taste) leads to flushing/sweating. |
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Term
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Definition
| sympathetic afferents carry visceral pain and enter the dorsal horn with sensory afferents of the skin. They converge on the ame nerve cells in the spinal cord with pain from the body surface so the pain feels like its from the skin instead of from the visceral organs. |
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Term
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Definition
| while a wound to the parotid gland is healing, parasympathetic fibers join the great auricular nerve so that whenever the person salivates (taste), their face flushes. |
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Term
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Definition
| When the facial nerve is healing, parasympathetic fibers join the lacrimal gland so whenever the person salivates they cry. |
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