Homeostasis Temperature Regulation

Front

What is the evaporation of a liquid to cool the body?

Back

Sweating

Front

Homeostasis in the human body is often maintained by a: neutral feedback loop, solar feedback loop, positive feedback loop, negative feedback loop

Back

negative feedback loop

Front

When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.

Back

Negative Feedback Loop

Front

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

Back

Positive Feedback Response

Front

Positive feedback is when the change caused by the stimulus is

Back

increased

Front

Homeostasis

Back

is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

Front

If the environment gets cold, we will often shiver in order to:

Back

increase body temperature

Front

Salt water crocodiles bask in the sun for several hours every morning. Which method of thermoregulation do they use? Options:

Endothermy, increase body temperature to increase rate of metabolism reactions in cells

,

Ectothermy, decrease body temperature to increase rate of metabolic reactions in cells.

,

Endothermy, decrease body temperature to increase rate of metabolic reactions in cells

,

Ectothermy, increase body temperature to increase rate of metabolic reactions in cells

Back

Ectothermy, increase body temperature to increase rate of metabolic reactions in cells

Front

What happens to a student's body when they walk into a cold room? Options: Sweating and vasodilation of blood vessels, Shivering and vasoconstriction of blood vessels, Sweating and vasoconstriction of blood vessels, Shivering and vasodilation of blood vessels.

Back

Shivering and vasoconstriction of blood vessels

Front

Which body system controls the body to maintain homeostasis? Options: excretory, nervous, circulatory, skeletal

Back

nervous