Feedback Mechanism Evaluation

Front

What is a feedback mechanism?

Back

A feedback mechanism is a biological process that helps maintain homeostasis by regulating internal conditions in response to changes in the environment.

Front

What is the role of the hypothalamus in temperature regulation?

Back

The hypothalamus detects changes in body temperature and initiates responses to either increase or decrease body temperature.

Front

What happens when the body temperature rises?

Back

The hypothalamus signals for blood vessels to dilate and sweat glands to activate, promoting heat loss.

Front

What is the function of sweat glands in thermoregulation?

Back

Sweat glands produce sweat, which evaporates from the skin surface, helping to cool the body.

Front

Define negative feedback loop.

Back

A negative feedback loop is a process that counteracts a change in a system, helping to return it to its set point.

Front

What is the primary function of insulin in blood sugar regulation?

Back

Insulin lowers blood glucose levels by facilitating the uptake of glucose into cells and promoting its storage as glycogen.

Front

What is the primary function of glucagon in blood sugar regulation?

Back

Glucagon raises blood glucose levels by stimulating the liver to release stored glucose into the bloodstream.

Front

How does oxytocin function during childbirth?

Back

Oxytocin stimulates uterine contractions, facilitating the delivery of the baby.

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a stable internal environment in an organism despite external changes.

Front

What is the significance of blood vessel dilation in response to heat?

Back

Blood vessel dilation increases blood flow to the skin, enhancing heat loss through radiation and convection.