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33 Cards in this Set
- Front
- Back
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Organ System
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A group of organs/structures working together to perform a major function in the body.
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Excretory System
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Removes liquid waste from the body(includes the kidneys and bladder).
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Model
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Scientist use pictures, diagrams, other representation to help understand small, large, complex things or processes.
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Mechanical Breakdown
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Food is physically broken down into smaller pieces (teeth/jaw and stomach).
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Chemical Breakdown
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Chemicals produced by the body break food into their chemical building blocks (saliva in mouth, digestive chemicals in stomach and small intestines).
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Digestive System
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Takes food into the body, breaks down food, and absorbs the digestive material
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Teeth
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Hold, tear, and chew food.
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Saliva
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The fluid released in your mouth that begins the chemical breakdown process.
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Stomach
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Receives food, churns it, and adds hydrochloric acid.
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Esophagus
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Food passageway between mouth and stomach.
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Small Intestine
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Absorbs useable nutrients which are sent to all body parts by blood vessels.
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Pancreas
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Produces digestive enzymes to further breakdown fat, proteins, and starches.
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Nutrients
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The substances in food that give the raw material and the energy needed by the body.
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Absorption
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The process by which nutrient molecules pass through the wall of the digestive system and into the blood.
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Large Intestine
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Absorbs water into the blood stream and prepares undigested food for elimination.
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Respiratory System
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The system that takes oxygen into the body and eliminates carbon dioxide.
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Lungs
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The main organs of the respiratory system.
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Trachea
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The "windpipe" that connects the throat and the bronchi. Walls are made of cartilage which protect the trachea from collapsing.
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Alveoli
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Tiny sac-like air spaces in the lung where carbon dioxide and oxygen are exchanged.
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Oxygen (O2)
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The gas that is inhaled through the respiratory system and that is required to access energy from the nutrients that gets absorbed from the digestive system.
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Carbon Dioxide (CO2)
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The gas that is produced when oxygen is used to access energy from nutrients. The respiratory system helps remove the CO2.
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Circulatory System
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Carries needed materials to the body cells; carries wastes away from body cells; helps fight disease.
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Blood
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Functions in carrying gases (CO2 and O2), nutrients, and waste around the body.
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Heart
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A hollow, muscular organ that pumps blood throughout the body.
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Pulse
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The number of times a heart beats per minute in a person's body.
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Muscle
(3 types) |
Muscle is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart muscle is called "cardiac muscle." Muscle that is in the walls of arteries and bowel is called "smooth muscle."
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Valve
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A flap of tissue in the heart or a vein that prevents blood from flowing backward.
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Atrium (Left and Right)
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Each of the two upper chambers of the heart that receives blood that comes into the heart.
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Ventricle (Left and Right)
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Each of the two lower chambers of the heart that pumps blood out to the lungs and body.
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Arteries
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Blood vessels that carry blood away from the heart (Most arteries contain oxygenated blood)
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Veins
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Blood vessels that carry blood to the heart. (Most veins contain deoxygenated blood).
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Blood Vessels
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Tubes of various sizes that blood travels through.
Capillaries: Blood vessels with walls so thin that oxygen, nutrients, and wastes can pass back and forth. |
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Capillaries
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Blood vessels with walls so thin that oxygen, nutrients, and wastes can pass back and forth.
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