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Digestive system function
Breaks down food into small pieces that can be used for energy and growth.
Physically breaking food into smaller pieces, without breaking apart any molecules
Breaking apart large molecules into smaller molecules by using acid or enzymes.
Food is mechanically digested by the teeth, chemically digested by saliva
Food is pushed toward the stomach by peristalsis waves
Food is mechanically digested by churning, chemically digested by acid
Nutrients are absorbed into the body
Water is absorbed into the body
Feces is stored
Feces exits the body
Secretes bile into the small intestine to help digest fats
Respiratory system function
To move oxygen into the body and remove carbon dioxide from the body.
warms and cleans air
carries air to the lungs
main organ of the respiratory system
branches at the end of the trachea that lead to lungs
small air sacs where oxygen diffuses into the blood and carbon dioxide diffuses out
muscle that inflates and deflates the lungs
Circulatory system function
To move blood containing oxygen, nutrients, and waste around the body.
The main organ that pumps blood around the body
The tubes that blood and nutrients flow through
Large blood vessels, carries blood high in oxygen away from the heart.
Large blood vessels, carries blood low in oxygen toward the heart.
Very small blood vessels, carry blood to individual cells
The liquid part of blood
Red blood cells
The cells that carry oxygen around the body
white blood cells
Cells that defend against bacteria and viruses
Very small cells that help blood clot at cut/wound sites
Musculoskeletal system function
To support the body, allow motion, and protect vital organs
attached to bones, voluntary
digestive tract, involuntary
Provide stiff structure to the body
Prodcues blood cells
The point of connection between two or more bones
Cushion between bones
Connects bone to muscle
Connect bone to bone
Nervous system function
To send electrical signals around the body to regulate ALL of the body’s functions.
Control center of our body functions
Connect brain with the rest of the body
Cells that send electrical impulses (messages) though the body
Detect sensory input (light, temperature, sound, etc.)
Trigger muscle contractions
Send messages between nerves
Immune system function
To protect the body against foreign invaders by identifying and destroying foreign material.
proteins that attach to foreign material and “flag” them for destruction
White blood cells
cells that allow the body to remember, recognize, and destroy previous invaders.
small structures that filter out and kill harmful germs in the body. They are full of white blood cells.
Urinary stsem function
To remove liquid waste from the body.
filter liquid waste from the blood and create urine
the tube that carries urine out of the bladder
Endocrine system function
To release hormones (message molecules) into the blood to regulate body processes and respond to environmental changes.
master gland that controls all the other glands; makes growth hormones
regulates metabolism (processing your food)
makes the “fight or flight” hormone adrenaline
produces hormones that regulate your blood sugar
produce hormones that control reproductive processes