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Help to prepare for LS3 test

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

What are the levels of organization in the human body?   cells->tissues->organs->organ systems  
What is structure?   How something is put together, what parts it has  
What is function?   Its purpose, what it does  
If cells have a similar structure and function, they are called...   tissue  
Systems are made of...   organs  
Organs are made of...   tissues  
Tissues are made of...   cells  
Respiratory rate means...   the number of breaths per minute  
When exercising, will your respiratory rate be higher or lower?   higher  
What is the function of the diaphragm?   It contracts and causes the pressure to change in your chest when you are breathing  
What does the circulatory system do?   It moves oxygen, waste, and nutrients through the body  
What does the digestive system do?   It breaks down food for energy  
What does the stomach do?   churns food into smaller pieces, has enzymes to digest food  
What digestive system organ absorbs nutrients?   Small intestine  
What does a defensive barrier do?   blocks germs from getting inside your body  
What are examples of defensive barriers?   mucus, skin, nose hairs  
What types of defenses fight germs in your body?   T-cells, B-cells, antibodies  
What does the lymphatic system do?   produces antibodies and white blood cells  
Why does a vaccine work?   it causes the immune system to get ready for future attack.  
What happens to lymph nodes when we get sick?   they become larger  
What is a vaccine/vaccination?   a dead or weak microbe injected into the body to help our immune systems fight disease  


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Created by: MrsGallagherFPMS