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30 Cards in this Set
- Front
- Back
All parasympathetic fibers release?
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ACh
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Postsynaptic membrane receptors
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Muscarinic and Nicotinic
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Location of the Muscarinic receptor
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Located at Cholinergic NMG Junction in the parasympathetic
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Locatin of the Nicotinic receptor
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Located on surface of ganglion cells of both sympathetic and parasympathetic divisions, and NMJ of somatic N.S. Excitatory
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Adrenergic neurons release?
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Noreprenepherin from postganglinic smypathetic neurons only
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Adrenergic neurons are excitatory or inhibitory depending on?
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Alpha and Beta Receptors
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Alpha 1 and Beta 1 receptors produce?
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Excitation
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Alpha 2 and Beta 2 receptors produce?
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Inhibition
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Beta 3(brown fat) receptors produces?
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Thermogenesis
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Most body organs recieve?
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Duel Innervation (Innervation by both sympathetic and parasympathetic)
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Balance between sympathetic and parasympathetic activity levels is regulated by?
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Hypothalamus
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Organs with only sympathetic innervation?
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Sweat glands, adrenal medulla, arrector pilli and many blood vessels
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Sympathetic responses are long lasting due to?
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Lingering Norepinepherine in synaptic gap and the release of NE by adrenal glands
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Sympathetic Neurotransmitters
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ACh (Cholinergenic) or NE(Adrenergic) at specific locations. E and NE into circulation
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Most postganglionic fibers are?
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Adrenergic
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NE stimulates _ receptors more than _ receptors?
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Alpha receptors more than beta Receptors
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E stimulates
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Alpha and Beta
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Sympathetic Ganglionic neurons end in the?
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Telodendria
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Components of the Autonimic refled arc
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Sensory Receptor, Sensory Neuron, Integrating center, Pre and Post Ganglionic motor neurons and Visceral Effector
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Limbic system and Thalamus?
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Emotions and sensory input
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Hypothalamus
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Sympathetic and Parasympathetic HQ
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Pons
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Higher Level of Respiratory Control
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Medulla Oblongata
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Processing center for complex Visceral Reflexes
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The simplest function of the ANS?
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Visceral reflex Arc
Long (Interneurons) Short (Bypasses CNS) |
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Respiration, Cardio Function and other visceral activities are governed by?
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Parasympathetic Reflexes
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We are not aware of Autonomic responses because?
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control center is in lower regions of the brain
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Major control center of ANS?
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Hypothalamus
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When blood flow is needed?
(Stimulation of Single Innervation) |
NE rate is decreased and sympathetic cholinergic fibers are stimulated. REsults in relaxation of smooth muscle cells and blood flow increases
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Functions performed by the cerebral cortex and involve complex interactions?
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Higher order Functions
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Also Ch 16
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Also CH 16
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