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15 Cards in this Set
- Front
- Back
Name the organs innervated by the alpha-1 receptors.
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1. Radial muscle, iris
2. Canal of SChlemm 3. Arterioles 4. Bronchial glands 5. Proximal tubules 6. Trigone 7. Urethra 8. Vas deferens 9. Pilomotor muscle 10. Salivary glands |
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Name the organs innervated by alpha 2 receptors.
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1. Canal of Schlemm
2. Arterioles 3. Stomach and intestine - motility and tone, secretion 4. Platelets 5. Islet cells (insulin) |
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Name the organs innervated by alpha receptors.
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1. Smooth muscle of the eyelid
2. Pregnant uterus 3. Pancreatic acinar cells |
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Name the organs innervated by Beta 1 receptors.
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1. Heart
2. JG cells 3. Adipocytes |
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Name the organs innervated by Beta 2 receptors.
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1. Arterioles
2. Bronchial muscle 3. Pregnant and nonpregnant uterus 4. Gallbladder and ducts. 5. Skeletal muscle 6. Liver |
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Name the organs innervated by beta receptors?
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Islet cells (glucagon)
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Name the innervation for sweat glands.
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Muscarinic (adrenergic)
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Name organs that are innervated by parasympathetics only.
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Sphincter muscle, iris
Ciliary m Esophagus Acid secretion in stomach Detrusor muscle Penis Urethral and bulbourethral gland Clitoris and area around introitus Bartholin's gland Lacrimal gland Nasopharyngeal gland. |
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What happens with older anti-histamine?
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They activate histamine receptors and also muscarinic cholinergic receptors.
Therefore the side effects of sleepiness, dry nose, dry mouth. |
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Describe the parasympathetic innervation in the penis.
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NO causes the relaxation of the arterioles therefore allowing the pooling of blood the penis.
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What does the NE released from the sympathetic fibers do?
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1. Bind alpha 2 receptors on vagal cardiac fiber (inhibitory)
2. Bind Beta 1 receptors on the SA node (excitatory) 3. Bind alpha 2 receptors on itself (autoreceptor) to decrease the release of more NE. |
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What does the Ach released from the parasympathetic fibers do?
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1. bind to M2 receptors on sym fibers (inhibitory)
2. bind to M2 receptors on the SA node (inhibitory) 3. bind to M2 receptors on itself (autoregulation) |
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What is the MOA of alpha 2 receptors on effector organs?
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Increase inhibition of AC therefore decrease cAMP
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What is the MOA of alpha 2 receptors on autoreceptors?
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Increase K conductance
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What is the MOA of alpha 2 receptors on SA node, sphincter muscle of iris and GI tract?
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Increase K conductance.
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