1. what would happen to the temperature of the blood if the feedback was positive rather than negative. 2. Cutting the nerves connecting the thermoreceptors to the heat loss centre in the hypothalamus might cause the death of the individual. explain precisely why this action might cause death. 3. Cutting the nerves connecting the heat loss centre to the skin would be less likely to cause death than if those between the thermoreceptors and the heat loss centre were cut. Suggest why. 4. Negative feedback in temperature regulation occurs as a result of blood passing from the skin to the brain. In doing so, this blood passes through the heart. List, in sequence, the major vessels joined to the heart that this blood would pass through on its journey.
1. what would happen to the temperature of the blood if the feedback was positive rather than negative. 2. Cutting the nerves connecting the thermoreceptors to the heat loss centre in the hypothalamus might cause the death of the individual. explain precisely why this action might cause death. 3. Cutting the nerves connecting the heat loss centre to the skin would be less likely to cause death than if those between the thermoreceptors and the heat loss centre were cut. Suggest why. 4. Negative feedback in temperature regulation occurs as a result of blood passing from the skin to the brain. In doing so, this blood passes through the heart. List, in sequence, the major vessels joined to the heart that this blood would pass through on its journey.
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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1. what would happen to the temperature of the blood if the feedback was positive rather than negative.
2. Cutting the nerves connecting the thermoreceptors to the heat loss centre in the hypothalamus might cause the death of the individual. explain precisely why this action might cause death.
3. Cutting the nerves connecting the heat loss centre to the skin would be less likely to cause death than if those between the thermoreceptors and the heat loss centre were cut. Suggest why.
4. Negative feedback in temperature regulation occurs as a result of blood passing from the skin to the brain. In doing so, this blood passes through the heart. List, in sequence, the major vessels joined to the heart that this blood would pass through on its journey.
Transcribed Image Text:heat loss
skin
thermoreceptors
in the
hypothalamus
rise in blood
vasodilation
cooler blood
centre in the
temperature
temperature
sweating
lowering hairs
hypothalamus
nerve
nerve
|impulses
impulses
blood at original temperature turns off corrective measures
= negative feedback
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