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Related to homeostatic control of a variable, which of the following is/are example(s) of a feedforward mechanism? Increased plasma glucose concentration stimulates insulin secretion, which stimulates glucose uptake into cells, which decreases plasma glucose concentration Stretch of the stomach by swallowing the first few bites of food stimulates increased parasympathetic activity to the pancreas, which increases insulin secretion, which stimulates increased glucose uptake into cells, although no glucose has been absorbed and plasma glucose concentration is unchanged as ye Low plasma glucose concentration stimulates glucagon secretion, which stimulat the liver to produce and release glucose, which increases plasma glucose concentration Hemoglobin concentration in blood at sea-level is normally about 14 g/dL. Hemoglobin in the blood binds oxygen and allows adequate oxygen delivery to tissues. At high altitude, there is less oxygen that can be inspired and so total oxygen carried in the blood decreases upon ascent in altitude. It is seen that immediately upon arrival at high altitude, hemoglobin levels are unchanged, but after a week at high altitude, hemoglobin levels increase and the oxygen carrying capacity of blood increases. Additionally, 1 week after return to sea-level, hemoglobin levels are back to the typical value of 14g/dL

Related to homeostatic control of a variable, which of the following is/are example(s) of a feedforward mechanism? Increased plasma glucose concentration stimulates insulin secretion, which stimulates glucose uptake into cells, which decreases plasma glucose concentration Stretch of the stomach by swallowing the first few bites of food stimulates increased parasympathetic activity to the pancreas, which increases insulin secretion, which stimulates increased glucose uptake into cells, although no glucose has been absorbed and plasma glucose concentration is unchanged as ye Low plasma glucose concentration stimulates glucagon secretion, which stimulat the liver to produce and release glucose, which increases plasma glucose concentration Hemoglobin concentration in blood at sea-level is normally about 14 g/dL. Hemoglobin in the blood binds oxygen and allows adequate oxygen delivery to tissues. At high altitude, there is less oxygen that can be inspired and so total oxygen carried in the blood decreases upon ascent in altitude. It is seen that immediately upon arrival at high altitude, hemoglobin levels are unchanged, but after a week at high altitude, hemoglobin levels increase and the oxygen carrying capacity of blood increases. Additionally, 1 week after return to sea-level, hemoglobin levels are back to the typical value of 14g/dL

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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Related to homeostatic control of a variable, which of the following is/are example(s) of a feedforward mechanism? Increased plasma glucose concentration stimulates insulin secretion, which stimulates glucose uptake into cells, which decreases plasma glucose concentration Stretch of the stomach by swallowing the first few bites of food stimulates increased parasympathetic activity to the pancreas, which increases insulin secretion, which stimulates increased glucose uptake into cells, although no glucose has been absorbed and plasma glucose concentration is unchanged as yet Low plasma glucose concentration stimulates glucagon secretion, which stimulates the liver to produce and release glucose, which increases plasma glucose concentration Hemoglobin concentration in blood at sea-level is normally about 14 g/dL. Hemoglobin in the blood binds oxygen and allows adequate oxygen delivery to tissues. At high altitude, there is less oxygen that can be inspired and so total oxygen carried in the blood decreases upon ascent in altitude. It is seen that immediately upon arrival at high altitude, hemoglobin levels are unchanged, but after a week at high altitude, hemoglobin levels increase and the oxygen carrying capacity of blood increases. Additionally, 1 week after return to sea-level, hemoglobin levels are back to the typical value of 14g/dL Temperature sensitive neurons detect decreased skin temperature, leading quickly to peripheral vasoconstriction and reduced skin blood flow to maintain core body temperature nearly constant, although core body temperature was unchanged initially
Transcribed Image Text:Related to homeostatic control of a variable, which of the following is/are example(s) of a feedforward mechanism? Increased plasma glucose concentration stimulates insulin secretion, which stimulates glucose uptake into cells, which decreases plasma glucose concentration Stretch of the stomach by swallowing the first few bites of food stimulates increased parasympathetic activity to the pancreas, which increases insulin secretion, which stimulates increased glucose uptake into cells, although no glucose has been absorbed and plasma glucose concentration is unchanged as yet Low plasma glucose concentration stimulates glucagon secretion, which stimulates the liver to produce and release glucose, which increases plasma glucose concentration Hemoglobin concentration in blood at sea-level is normally about 14 g/dL. Hemoglobin in the blood binds oxygen and allows adequate oxygen delivery to tissues. At high altitude, there is less oxygen that can be inspired and so total oxygen carried in the blood decreases upon ascent in altitude. It is seen that immediately upon arrival at high altitude, hemoglobin levels are unchanged, but after a week at high altitude, hemoglobin levels increase and the oxygen carrying capacity of blood increases. Additionally, 1 week after return to sea-level, hemoglobin levels are back to the typical value of 14g/dL Temperature sensitive neurons detect decreased skin temperature, leading quickly to peripheral vasoconstriction and reduced skin blood flow to maintain core body temperature nearly constant, although core body temperature was unchanged initially
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