Temperature Regulation

Question 1

Cold blooded animal, such as a fish or reptile

Whose internal body temperature varies with the environment

Answer 1

Poikilotherms

Question 2

Portion of the lower brain
Which secretes substances that control metabolism through the pituitary gland
Helps regulate temperature, appetite, water balance, blood sugar, and fat metabolism.
The hypothalamus also regulates other glands: ovaries, tested, thyroid, parathyroids

Answer 2

Hypothalamus

Question 3

Sum of all the physical and chemical processes occurring in the body
Including anabolic and catabolic reactions

Answer 3

Metabolism

Question 4

Involuntary trembling from contraction or twitching of muscles

Method of heat production in mammals

Answer 4

Shivering

Question 5

Thyroxine and tri iodothyronine are hormones secreted by the thyroid gland that influences growth and metabolism

Answer 5

Thyroid hormone

Question 6

Adrenal hormone that increases systemic vascular resistance and improved coronary and cerebral blood flow.

Answer 6

Epinephrine

Question 7

Temperature differences in two parts of the body or between the body and the environment.

Answer 7

Thermal gradient

Question 8

Rate of chemical reactions double with each 10•C increase in temperature

Answer 8

Q10 Effect

Question 9

Heat loss or gain in the form of infrared rays

Answer 9

Radiation

Question 10

Transfer of heat between objects

Answer 10

Conduction

Question 11

Gain or loss of heat to or from air or water

Answer 11

Convection

Question 12

Lowest possible temperature ( 0• Kelvin, -273.15• Celsius, 459.67• Fahrenheit) where all molecular motion ceases

Answer 12

Absolute zero

Question 13

Movement of heat from one place to another

Answer 13

Heat transfer

Question 14

Effects of air movement on reducing the effective temperature

Answer 14

Wind chill

Question 15

Change from a liquid to a gas form

Answer 15

Evaporation

Question 16

Water loss from the body that does not occur through the sweat glands

Answer 16

Insensible water loss

Question 17

Center in the hypothalamus that causes piloerection

Goose bumps

Answer 17

Polo motor center

Question 18

Contractions of small muscles surrounding hair follicles that causes the hairs to stand up

Answer 18

Piloerection

Question 19

Organism that maintains a constant internal body temperature

Answer 19

Homeotherm