Question

which of following is not a component of a negative feedback mechanism

Answer 1

In a negative feedback mechanism there is a initiation event or stimuli that produce variation that is sensed by a receptor in the form of change in the variable and it's and signals to control Center control Center comparethe variable with the reference value and send signal to effectoreffe effector Max and equilibrium in the opposite direction of the initiation event via negative feedback mechanism which lead to balancing of the variable adjacent to its normal range.

Example of the negative feedback mechanism are

-controlling of the blood pressure via renin-angiotensin-aldosterone system

controlling of the release of the all the endocrine hormones from pituitary is under negative feedback by their corresponding hormones

Regulation of the blood calcium level by Vitamin D and parathyroid hormones.

Regulation of the blood glucose level via insulin.