Save
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

Feedback Mechanisms

From the Review Book

QuestionAnswer
Homeostasis A stable internal environment. “Balance”
Deviations Changes in the environment.
Stimulus (Stimuli) A change in the environment that causes a response.
Response A reaction to the stimulus.
Dynamic Equilibrium The condition that results from the constant small corrections that keep a balance.
Feedback Mechanism A cycle in which the output of the system feeds back to either modify or reinforce the action of the system.
Positive Feedback A change that leads to a greater change and a greater response. Ex: Childbirth, Blood Clotting
Negative Feedback A change in the environment that causes another change that will attempt to restore homeostasis.
Sensors Structure(s) that detect changes in the internal or external environment.
Endocrine Gland A structure in the human body that makes hormones and secretes them directly into the blood.
Hormone A chemical message sent in the bloodstream from endocrine glands.
Target Cell A cell with the matching receptor to the hormone.
Regulation (Regulate) All the activities that help to maintain homeostasis.
Inhibit To Stop or slow down.
Stimulate To Trigger, provoke.
Secrete To make and release (glands secrete hormones into the blood)
Pancreas A gland that secretes insulin.
Insulin A hormone that lowers blood sugar levels.
Guard Cells Specialized cells that surround pores on the surface of the leaf and change size to reduce evaporation. Regulate CO2 and water vapor on hot days.
Pituitary Gland Located in the brain. “Master Gland” Controls all other glands in the body. Secretes HGH.
Testes Male gonads. It makes sperm and the hormone testosterone. Testosterone controls male reproductive system and secondary sex characteristics.
Ovaries Female gonads. They make eggs and the hormones estrogen and progesterone which regulate the female reproductive system and secondary sex characteristics.
Created by: dlong
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