Gr 7 Science Ch 3 Word Scramble
|
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
Normal Size Small Size show me how
| Term | Definition |
| 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