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human body system

TermDefinition
Tissue a group of simalar cells that perform a specific function.
organ a body structure that is composed
organ system a group of organs that work together to perform a major function
gland an organ that produces and realses chemicals either through ducts or into bloodstream
hormone the chemical produced by an endorcrine gland
stress the reaction of a persons body
interactions the direct effect that one thing has on another
stable resistant to sudden change
diegeston the process by which your body breaks down food
nutrients the substances in food that provide the raw matirieals that body cells need to carry out all their essential processes
absortion the process by which nutrient molecules pass through the wall of the digestive system
carbohydrates a energy rich organic compound, such as sugar or strach that is made of elements carbon,hydrogen and oxygen
peristalis waves of smootg muscle contractions that move food through the esphagus toward the stomach
saliva fluid realsed from glands in the mouth that play an important role mechanical and chemical diegeston
enzymes protiens that speed up chemical reactions in thebody
elimination act of removal of materials from the body
circulatory system an organ system that transports needed materials to cells and removes waste
contract to draw together to reduce in size
artery a blood vessel that carriers blood away from the heart
vien a blood vessel that carries blood back to the heart
capillary a tiny blood vessel where substances are exchanged between that blood and body cells
lymph fluid that travels lymphatic system consisting or water, white blood, and dissolved materials
bronchi the two paaeges that direct air into the lungs
alveoil tiny thin walled sacs of lung tissue specialzed for the movement of gases between air and blood
excretion the process of moving wastes
nephron small filtering structure in the kidneys that removes wates from blood and produces urine
neuron a cell that carries info through the nervous system
synapas the junction where one neuron can transfer an impulse to another neuron
impulse the meassge carried by a neuron
brain the part of the central nervouse system that is located in the skull and controls most functions most of the body
spnal cord thick cloumn of nervous tissue that links the brain to most of the nerves that branch out through the body
reflex automatic responses that occurs without conscious control through the somatic nervous system
negative feedback the process by which a system is turned off by the conditiion it produces
Created by: user-1722357
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