Thermoregulation

Question 1

What is thermoregulation?

Answer 1

The maintenance of a relatively constant core body temperature

Question 2

What are the way heat can be lost or gained?

Answer 2

Evaporation, Conduction, Convection or Radiation*

Question 3

What is an endotherm and an ectotherm?

Answer 3

Endotherm: An organism with a body temperature regulated by internal sources of heat (warm blooded, birds and mammals)

Ectotherm: Organism whose body temp. is regulated by external hat source (cold-blooded, lizards and vertebrate groups)

Question 4

How does the body increase core body temperature?

Answer 4

Vasoconstriction: Blood vessels contract to allow less blood flow to sin surface so blood is not cooled.

Shivering: The body induces shivering to*

Question 5

What are the sensor, modulator and effectors in thermoregulation?

Answer 5

Thermoreceptors

Hypothalamus

Blood vessels near skin*

Question 6

What is the mechanism involved in losing heat?

Answer 6

*

Question 7

What is the mechanism involved in gaining heat?