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A dog is hemorrhaged and the decrease in mean arterial pressure, APA control, is recorded. The dog's baroreceptor nerves are cut (both carotid and aortic), eliminating the baroreflex, which makes the dog "areflexive". The areflexive dog is hemorrhaged the same amount and his blood pressure drops 24 mmHg (APaareflexive 24 mmHg). In other words, APaareflexive is the change in mean arterial blood pressure from the normal control state to the one in which the dog's baroreceptor nerves were cut and then the dog was hemorrhaged. If the dog had a closed loop baroreflex gain of 2 (GH=2), what would be the decrease in pressure due to the same hemorrhage before the carotid sinus nerves were cut (APacontrol)? Show your work.

A dog is hemorrhaged and the decrease in mean arterial pressure, APA control, is recorded. The dog's baroreceptor nerves are cut (both carotid and aortic), eliminating the baroreflex, which makes the dog "areflexive". The areflexive dog is hemorrhaged the same amount and his blood pressure drops 24 mmHg (APaareflexive 24 mmHg). In other words, APaareflexive is the change in mean arterial blood pressure from the normal control state to the one in which the dog's baroreceptor nerves were cut and then the dog was hemorrhaged. If the dog had a closed loop baroreflex gain of 2 (GH=2), what would be the decrease in pressure due to the same hemorrhage before the carotid sinus nerves were cut (APacontrol)? Show your work.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A dog is hemorrhaged and the decrease in mean arterial pressure, APA control, is recorded. The dog's baroreceptor nerves are cut (both carotid and aortic), eliminating the baroreflex, which makes the dog "areflexive". The areflexive dog is hemorrhaged the same amount and his blood pressure drops 24 mmHg (APaareflexive 24 mmHg). In other words, APaareflexive is the change in mean arterial blood pressure from the normal control state to the one in which the dog's baroreceptor nerves were cut and then the dog was hemorrhaged. If the dog had a closed loop baroreflex gain of 2 (GH=2), what would be the decrease in pressure due to the same hemorrhage before the carotid sinus nerves were cut (APacontrol)? Show your work.
Transcribed Image Text:A dog is hemorrhaged and the decrease in mean arterial pressure, APA control, is recorded. The dog's baroreceptor nerves are cut (both carotid and aortic), eliminating the baroreflex, which makes the dog "areflexive". The areflexive dog is hemorrhaged the same amount and his blood pressure drops 24 mmHg (APaareflexive 24 mmHg). In other words, APaareflexive is the change in mean arterial blood pressure from the normal control state to the one in which the dog's baroreceptor nerves were cut and then the dog was hemorrhaged. If the dog had a closed loop baroreflex gain of 2 (GH=2), what would be the decrease in pressure due to the same hemorrhage before the carotid sinus nerves were cut (APacontrol)? Show your work.
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