Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Homeostasis

internal temperature regulation

QuestionAnswer
Homeostasis maintenance of a constant internal environment
too hot hyperthermia, enzymes denature
too cold hypothermia, enzymes are too slow
Functions of the skin protect against friction damage, UV and pathogens, produces vitimin D, waterproofs the body and allows sensitivity to surroundings
dead layer of skin epidermis
living layer of skin dermis
protein found in skin keratin
ectotherms maintain body temperature from external surroundings. eg lizards
endotherms use metabolism to generate heat. eg mammels
how does metabolism generate heat? muscle contractions shivering cell reactions
Where else do we get heat from? hot food and drink sunbathing
sunbathing lizard basking
How is metabolic rate controlled thyroxin from the thyroxid gland
CONDUCTION lose warmth to stuff u are in contact with
CONVECTION lose heat to surrounding air which rises
RADIATION body heat warms stuff without touching them
EVAPORATION OF SWEAT sweat evaporates taking heat energy away from the body
too hot radiation, vaso dilation of superficial capillaries, sweat MORE
too cold vasoconstriction of superficial capillaries, release energy from food, shivering uses energy
What is thermoregulation controlled by hypothalmus
Where are temperature receptors found? skin and around internal organs
Where do the receptors send there impulses? hypothalmus
Where does the hypothalamus send impulses? blood vessels, muscles and sweat glands of the skin
What is this an example of? NEGATIVE FEEDBACK
What does the sympthetic nervous system control? sweat glands and diameter of the arterioles
Created by: 07blandforderin
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards