Term
| What type of effector organ receptor does the sympathetic nervous system use? What is the effector organ? |
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Definition
Nicotinic receptor
skeletal muscle |
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Term
| What type of receptor does the sympathetic division of the autonomic nervous system use at the effector organ? |
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Definition
alpha-1, alpha-2, beta-1, beta-2 (all adrenergic) are used for smooth muscle and for glands
muscarinic, cholinergic receptors are used for sweat glands |
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Term
| How many neurons does the sympathetic nervous system use to reach the effector organ? How about the autonomic nervous system or the adrenal nervous system? |
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Definition
sympathetic - 1 neuron
autonomic & adrenal - 2 neurons, a pre-ganglionic and a post-ganglionic |
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Term
What neurotransmitter is used to transmit signals from pre-ganglionic ANS neurons to post-ganglionic ANS neurons?
What type of receptor is on the post-ganglionic neurons? |
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Definition
ACh is used
nicotinic, cholinergic receptors are on the post-ganglionic neurons |
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Term
| Do pre-ganglionic neuron differ between the parasympathetic and sympathetic divisions of the ANS? |
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Definition
the sympathetic division has short pre-ganglionic neurons
the parasympathetic division has long pre-ganglionic neurons that reach ganglia near the target effector organ |
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Term
| What is unique about the sympathetic postganglionic synapse with the effect organ(s)? |
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Definition
all organs except for the sweat glands use adrenergic receptors
the sweat glands use muscarinic receptors and are stimulated by ACh |
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Term
True or False - The parasympathetic system always uses muscarinic receptors for it's effector organs.
What are it's effector organs? |
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Definition
True, muscarinic receptors using ACh
the effector organs are smooth muscle and glands |
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Term
| How is the adrenal medulla stimulated? |
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Definition
| a pre-ganglionic neuron releases ACh at a nicotinic receptor, stimulates release of Epinephrine (80%) or Norepinephrine (20%) |
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