MICROANATOMY

Detailed explanation-1: -The control of blood sugar (glucose) by insulin is a good example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense a change. In turn, the control center (pancreas) secretes insulin into the blood effectively lowering blood sugar levels.

Detailed explanation-2: -Examples of negative feedback A typical example of a negative feedback mechanism in the human body is the regulation of body temperature via endotherms. When the body’s temperature rises above normal, the brain sends signals to various organs, including the skin, to release heat in the form of sweat.

Detailed explanation-3: -Some examples of positive feedback are contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation.

Detailed explanation-4: -When insulin is present in the blood, more glucose is carried into the cell, resulting in a glucose shortage in the blood. Low glucose levels restrict insulin secretion in the circulation, causing negative feedback to prevent glucose shortages.

Detailed explanation-5: -Regulation of blood pressure is an example of negative feedback. Blood vessels have sensors called baroreceptors that detect if blood pressure is too high or too low and send a signal to the hypothalamus.