Thermoregulation

Homeostasis

The process of maintaining stable internal conditions in the body despite changes in the external environment.

Thermoregulation

The process by which the body maintains its internal temperature within a narrow range.

Hypothalamus

A region of the brain that plays a key role in regulating body temperature and homeostasis.

Negative Feedback

A control mechanism in which a change in a physiological variable triggers a response that counteracts the initial change.

Positive Feedback

A control mechanism that amplifies a response or increase in the output, moving the system away from its original state.

Vasodilation

The widening of blood vessels, which increases blood flow to the skin and helps to lower body temperature.

Vasoconstriction

The narrowing of blood vessels, which reduces blood flow to the skin and helps to conserve body heat.

Sweating

The process of secreting fluid from sweat glands, which cools the body as it evaporates from the skin.

Shivering

Involuntary muscle contractions that generate heat in response to cold temperatures.

Hair Flat (in Hot conditions)

The hair lies flat against the skin to minimize insulation and promote heat loss.

Hair Stands Up (in Cold conditions)

The hair stands up to trap air and increase insulation, helping to retain body heat.

Body Temperature

The internal temperature of the body, which is kept within a narrow range for optimal function.

Ion Content

The balance of ions in the body, which is crucial for various physiological functions.

Blood Glucose Concentration

The level of glucose in the blood, which is regulated for energy supply and overall homeostasis.

Receptors

Sensory cells that detect changes in the environment and send signals to effectors for response.