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

Gr 7 Science Ch 3

Gr 7 Science Ch 3.2 (Urinary & Lymphatic Systems)

excretory system body system that excretes wastes from the body
urinary system portion of the excretory system that removes liquid and soluble waste products from the body
kidneys bean-shaped organ that filters waste products and excess water from the blood
ureters either of the tubes that connect the kidneys to the bladder
bladder organ where urine is stored
urethra canal that discharges urine from the body
lymphatic system portion of the immune system that circulates tissue fluid
tissue fluid liquid that surrounds every cell in the body
lymph tissue fluid that has been forced into lymph vessels
lymph nodes enlarged bundles of lymphatic tissue that cleans lymph of debris and microorganisms
Peyer's patches groups of lymph nodes in the ileum of the small intestine which continuously clean and protect your digestive system so that it can work efficiently
spleen largest lymphatic organ; filters dead cells and microbes in the blood; serves as a storage tank for blood
immune system body system that fights pathogens
lysozyme antibacterial enzyme contained in tears and perspirations
skin prevents many harmful microorganisms from entering your body
mucous membranes line body passageways that open to the outside and use mucus to trap invaders
stomach's hydrochloric acid destroys most harmful bacteria that enter your digestive system with your food
white blood cells phagocytes
lymphocytes groups of white blood cells that includes B cells, helper T cells, and killer T cells
antibodies substances produced by the body to inactivate pathogens so they cannot do any damage before they are destroyed
immunity ability of the body to resist invasion by a pathogen
thymus organ that is located behind the breastbone and between the lungs and plays an important role in the development of lymphocytes
adenoids accumulation of lymphatic tissue that prevents pathogens from entering the body through the throat
tonsil accumulation of lymphatic tissue in the throat
acquired immunity resistance to disease caused by being exposed to a pathogen, receiving a vaccine, or receiving an injection of antibodies
innate immunity the body's natural resistance to disease in general or to specific diseases (without having been exposed to the pathogen or a vaccine)
Created by: mbrennan262
Popular Science 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