NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the chemical reactions involved in blood clotting
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your blood vessels dilate and you begin to sweat in response to elevated body temperature
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your blood vessels constrict and you begin to shiver in response to low body temperature
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your coach compliments you on your performance in practice
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Detailed explanation-1: -Which of the following is an example of positive feedback to indirectly maintain homeostasis? Q. When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding.
Detailed explanation-2: -Blood Clotting The process of blood coagulation (hemostasis) is a cascading positive feedback loop. When the body is damaged inside or outside, the damaged tissues release factors that cause platelets to adhere to the tissue (the effector) at the site of the wound.
Detailed explanation-3: -Feedback loops are biological mechanisms whereby homeostasis is maintained. This occurs when the product or output of an event or reaction changes the organism’s response to that reaction. Positive feedback occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly.