Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Immune System

Immune System Review

immune system functions (2) 1) Prevent pathogens from entering the human body 2) If a pathogens enters, defend against it
skin Acts like a barrier (not allowing germs to enter) and contains chemicals like sweat and oil (part of the first line of defense)
breathing passages Lined with mucus and cilia which help trap pathogens that are inhaled (part of the first line of defense)
mouth and stomach Contain destructive chemicals to help kill pathogens in the food we eat (part of the first line of defense)
inflammatory response When fluid and white blood cells leak from blood vessels into nearby tissue, causing the area to become red and swollen (second line of defense)
T-cells white blood cells that recognize pathogens based on their antigens
B-cells white blood cells that produce antibodies to help mark and destroy pathogens
antigens molecules on the outside of a pathogen that allow the human body to recognize and identify it
antibodies proteins that bind to the antigen on the outside of a pathogen to mark it for destruction
phagocytes white blood cells that engulf pathogens and destroy them by breaking them down
Created by: jlodico
Popular Biology sets




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:
restart all cards