SBfg: Thermoregulation

Question 1

Dermis

Answer 1

Layer below the epidermis of the skin, which contains temperature receptors, sweat glands and erector muscles.

Question 2

Epidermis

Answer 2

Outer layer of skin.

Question 3

Erector muscle

Answer 3

Muscle in the skin dermis that contracts and raises a body hair.

Question 4

Fever

Answer 4

A core body temperature that is too high (above 38 °C).

Question 5

Hypothalamus

Answer 5

Part of the brain that monitors and controls body temperature.

Question 6

Hypothermia

Answer 6

A core body temperature that is too low (below 36 °C).

Question 7

Negative feedback

Answer 7

Where a change in a system causes a response that brings about the opposite change, returning the system to a ‘normal’ level.

Question 8

Shivering

Answer 8

Rapid contraction and relaxation of muscles that causes the body to warm up.

Question 9

Thermoregulation

Answer 9

The control of body temperature, especially in core parts of the body (e.g. heart, liver and brain).

Question 10

Vasoconstriction

Answer 10

Narrowing of blood vessels, which reduces blood flow.

Question 11

Vasodilation

Answer 11

Widening of blood vessels, which increases blood flow.