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Body Systems

cell the building blocks of all plants and animals
single-cell organism a microscopic organism made of one cell that is able to carry out all life processes
muli-cell organism an organism that consist of more than one cell and use transport systems to carry out life processes
bacteria unicellular organism (microscopic)
body systems important systems that work together to maintain health and fitness
cardiovascular system consist of the heart, blood vessels, and blood; transports nutrients and oxygen and removes gaseous waste from the body (also know as the circulatory system)
circulatory system consist of the heart, blood vessels, and blood; transports nutrients and oxygen and removes gaseous waste from the body (also know as the cardiovascular system)
heart muscular organ about the size of a fist that pumps blood to the body and lungs
right side of heart recieves oxygen poor blood from the body and sends it to the lungs to receive oxygen
left side of heart receives oxygen rich blood from the lungs and sends it to the body
blood vessels carry blood from place to place
arteries carry blood away from the heart
veins carry blood to the heart
capillaries narrow vessels that carry blood from arteries to veins
nervous system body's control center that is made up of the brain and spinal cord
brain control center made up of the cerebrum and brain stem
brain stem lowest part of the brain that controls heartbeat, breathing, blood pressure, and muscles in the digestive system
muscular system works with the skeletal system to allow movement
skeletal muscle muscles that are attached to bones
cardiac muscle muscles found in the heart
smooth muscle muscles that make-up internal organs and blood vessels
tendon tough cords that attach muscles to bones
skeletal system the body's supporting frame made of bones; gives body shape, protects organs, works with muscles to allow movement
206 number of bones in the skeleton
joints a place where 2 or more bones meet
immovable joints bones fit together too tightly to move
partly movable joints bones can moce only a little
movable joints places where bones can move easily
bone marrow tissue found inside bones responsible for making red and white blood cells
digestive system breaks down food into simple substances that the body can use
mouth the place where digestion begins
esophagus muscular tube that transports food from the mouth to the stomach
stomach stores food and produces gastric juices that break down into nutrients
liver produces bile to help break down food and absorb fats
pancreas produces insulin, which is used to move sugar from the blood into the body cells
small intestine has finger like villi that absorb nutrients into your blood
large intestine absorbs water and vitamins from the undigested food; stores the solid until it is eliminated
respiratory system gets and uses oxygen in the body , removes carbon dioxide (waste) from the body
trachea the tube that air travels down to the lungs
bronchial tubes trachea splits in to these two tubes, one going to each lung
bronchioles smaller tubes branching from the bronchial tubes
aveoli tiny air sacs that exchage carbon dioxide for oxygen
lungs one of the largest organs in your body; sponge like organs that expand and contract when you inhale and exhale; protected by the ribs
diaphragm a dome-shaped muscle that works with your lungs to allow you to inhale and exhale
Created by: mfqueen