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15 Cards in this Set

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Immune System
helps the body fight disease
Cardiovascular System
Pumps blood through your body. When you inhale, you breathe in air and send it down to your lungs. Blood is pumped from the heart to your lungs, where oxygen from the air you've breathed in gets mixed with it. That oxygen-rich blood then travels back to the heart where it is pumped through arteries and capillaries to the whole body, delivering oxygen to all the cells in the body
Digestive System
breaks down food into usable nutrients.
Skeletal System
Provides support for the body and helps protect your organs.
Respiratory System
absorbs oxygen and relseases carbon dioxide.
Nervous system
sends and recieves electrical messages from the brain to the rest of the body.
Muscular system
moves your bones and moves food and blood through your body.
Biology
the study of life
Neurons
the nervous systems is made up of nerve cells
spinal chord
coordinates activities between brain and other parts of the body.
Brain- functions
It monitors and regulates unconscious bodily processes like breathing and heart rate, and coordinates most voluntary movement.
what is blood?
Most of your blood is a colorless liquid called plasma. Red blood cells make the blood look red and deliver oxygen to the cells in the body and carry back waste gases in exchange. White blood cells are part of your body's defense against disease
what does your small intestine do to help digest food?
Inside the small intestine, chemicals and liquids from places like your kidneys and pancreas break down and mix up the leftovers. The small intestine looks like a strange underwater world filled with things that resemble small finger-like cactuses. But they're not cactuses, they're villi. Like sponges, they're able to absorb tremendous amounts of nutrients from the food you eat. From the villi, the nutrients will flow into your bloodstream.
what is bone marrow?
Many bones are hollow. Their hollowness makes bones strong and light. It's in the center of many bones that bone marrow makes new red and white blood cells. Red blood cells ensure that oxygen is distributed to all parts of your body and white blood cells ensure you are able to fight germs and disease.
what does skin do?
Your skin doesn't just cover you. It does a whole lot more. It functions as protective wrapping. Along with a layer of fat underneath, it insulates you against all kinds of bumps, bangs and wear and tear. It keeps germs and water OUT (unless you have a break in your skin) and keeps your body's fluids and salts IN.