Animal Physiology - Lecture 10

Question 1

Homeostasis is any ..-.. process by which .. systems maintain .. whiel adjusting to the ..

Answer 1

self-regulating, biolgoical, stability, environment

~a dynamic equilibrium

Question 2

steady states are importnat for .., .. reactions, preventing proteins from .., concentration …

Answer 2

enzymes, chemical, denaturing, gradients

Question 3

receptor -> .. -> … -> stimulis -> receptor

Answer 3

control center, stimulus

Question 4

the receptor monitors .. environment

Answer 4

internal

Question 5

the control center sends a message to the …, when a parameter .. normal range

Answer 5

effector, exits

Question 6

the effector …. the .. envrionment

Answer 6

re-establishes, internal

Question 7

feedback returns the output to the input part of the system, so the cycle ..

Answer 7

repeats

Question 8

platypus like ..C, penguins ..C

Answer 8

32, 39

Question 9

naked mole rats stay .. and .. need to regulate temperature

-homeostatic mechanisms are costly

Answer 9

underground, don’t

Question 10

torpor is lethargy, can result from .. weather such as nighttime

Answer 10

cold

-E.g. A hummingbirds heartrate may fall from 1200 to 50 beats per minute

Question 11

Eastern pygmy possum can undergo a short .. torpor or .. hibernation based on .. factors

Answer 11

shallow, longer, environmental

Question 12

Eryhropoietin stimulates red .. marrow which increases .. .. .. count

It’s normally released due to low atmospheric .. increased .. and …

It increases O2 supply by ..-..%

Answer 12

bone, red blood cell

O2, exercise, haemorrhaging

7-10

• injecting this in doping results in increased heart attack risk
• can be tested by RBC increases

Question 13

meldonium treats coronary .. disease by increasing .. and .. flow

Answer 13

artery
blood, oxygen
-banned 2016