PATHOLOGY

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PATHOLOGY MCQ

ENDOCRINE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An increase in the level of hormone A causes an increase in the level of hormone B. The increase in the level of hormone B then causes a decrease in the level of hormone A. This process is an example of
A
a failure to maintain homeostasis
B
a feedback mechanism
C
a disruption in cellular coordination
D
the breakdown of chemicals
Explanation: 

Detailed explanation-1: -Growth hormone levels are increased by sleep, stress, exercise and low glucose levels in the blood. They also increase around the time of puberty.

Detailed explanation-2: -Glucagon levels would rise. Glucagon is a hormone secreted by the pancreas that works to increase blood glucose level.

Detailed explanation-3: -The three mechanisms of hormonal release are humoral stimuli, hormonal stimuli, and neural stimuli. Humoral stimuli refers to the control of hormonal release in response to changes in extracellular fluid levels or ion levels.

Detailed explanation-4: -Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.

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