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9 Cards in this Set
- Front
- Back
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What type of mechanism does baroreceptors use?
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Intrinsic Mechanisms
Baro = pressure or mechanical Baroreceptors sense pressure. |
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What are two examples of Baroreflexes?
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Arterial baroreflexes - Feeds back pressure information from arteries
Cardiopulmonary baroreflexes - Feeds back pressure information from heart lung circulation |
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What are two examples of Intrinsic Mechanisms?
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Chemoreflexes and Baroreflexes
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What do chemoreceptors sense?
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Chemoreceptors sense a circulating chemical.
O2 CO2 or H+ |
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What are some examples of Chemoreflexes?
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Carotid and Aortic Bodies
Specific receptors on the carotid arteries and the aorta that sense blood chemistry. Sensitive to changes in partial pressure of O2, CO2, & H+ |
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What are the main neurotransmitters and receptors for the Sympathetic branch of the autonomic nervous system?
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Sympathetic
Epinephrine & Norepinephrine Adrenergic Receptors |
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What are the main neurotransmitters and receptors for the Parasympathetic branch of the autonomic nervous system?
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Acetylcholine
Muscarinic & Nicotinic Cholinergic Receptors |
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Sympathetic nervous system is mediated largely by _____ released from ______ nerves
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Norepinephrine
Afferent |
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Norepinephrine causes ____ in most (but not all) blood vessels (________ receptors)
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Vasoconstriction
α1 and α2 adrenergic receptors |
