Lesson 1 : Thermoregulation and Homeostasis: Body Temperature Control

homeostasis

The process of maintaining and controlling the body's internal environment, including temperature, oxygen levels, blood sugar, and pH.

blood vessels in the skin when the body is cold

Blood vessels constrict to direct more blood away from the skin to preserve core body temperature.

bodys response to overheating

The body sweats to release water onto the skin's surface, which absorbs heat and cools the body through evaporation.

  thermoregulation

The process by which the body maintains its core internal temperature within a narrow range despite external temperature changes.

physiological response when the body is cold

Rapid muscle movements generate heat, and the body traps warmer air close to the skin.

role of sweat

Sweat evaporates from the skin surface, helping to absorb heat and cool the body.

blood vessels in skin during hyperthermia

Blood vessels dilate, allowing more blood to flow to the skin, which increases heat loss.

consequences of failing to regulate body temperature

Hypothermia (excessive cooling) and hyperthermia (excessive heating) can occur if thermoregulation fails.

importance adapting to conditions in homeostasis

It allows the body to respond effectively to environmental changes and maintain stable internal conditions.

goal of homeostasis

To maintain a stable internal environment despite external changes.