Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
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

NRTC A&P Ch 16

Lymphatic & Immune Systems

QuestionAnswer
What do cytotoxic t-cells do? Carry out the attack
What do helper t-cells do? Support cytotoxic t-cells, secrete chemicals to trigger chemotaxis
What do memory t-cells do? Remember the pathogen in case of future invasion.
How do the B-cells stop antigens? Secreting antibodies that stop antigens.
What is an allergy? Hypersensitivity of the immune system to an environmental substance that normally is not a problem.
What is an allergen? An environmental substance that normally is not a problem.
What is produced upon the first exposure to an allergen? Immunoglobulins (IgG) (Antibodies)
Mast cells release what? Histamine
What is an immediate allergic reaction? A reaction that happens right away
What is a delayed allergic reaction? A reaction that occurs slowely
What determines if an allergic reaction will be immediate or delayed? The person's immune system.
What is anaphylaxis? Severe, immediate allergic reaction that affects the whole body.
What are signs and symptoms of anaphylaxis? Constriction of airways vasodilation Red, itchy, raised rash swelling of face, lips, tongue
What is anaphylactic shock? Immediate allergic reaction that worsens to the point of circulatory shock and maybe even sudden death.
Created by: bpeters