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Human body systems

TermDefinition
1.Tissue: a group of similar cell that perform a specific function 18.Contract: to draw together; to reduce in size
2.Organ:a body structure that is composed of different kinds of tissues that work together 19.Artery: a blood vessel that carries blood away from the heart
3.Organ system:a group of organs that work together to perform a major function 20.Vein: A blood vessel that carries blood back to the heart
4.Gland:an organ that produces and releases chemicals either through ducts or into the bloodstream 21.Capillary: a tiny blood vessel where substances are exchanged
5.Hormone:(1) the chemical produced by an endocrine gland (2) A chemical that effects growth and development 22.lymph: Fluid that travels through the lymphatic system consisting of,water white blood cells, and dissolved materials
6.Stress: the reaction of a person's body to potentially threatening, challenging, or disturbing events 23.Bronchi: the two passages that direct into the air lungs
7. Interactions: the direct effect that one thing has on another 24. Alveoli: a tiny thin- walled sacs of lung tissues specialized for the movement of gases between air blood
8.Stable: resistance to sudden change 25.Excretion: the process of moving wasted
10. Nutrients: the substances in food that provide the raw materials the body's cell need to carry out all their essentials processes 26. Nephrone: small filtering instruction in the kidneys that removes waste from blood and produces urine
11.Absorption: The process by which nutrients molecules pass through the wall of the digestive system into blood 27.Neuron: a cell that carries information through the nervous system
12.carbohydrates: an energy-rich organic compound, such as sugar or starch, that is made of elements carbon, hydrogen and oxygen 28. synapse: the junction where one neuron can transfer an impulse to another neuron
13.Peristalsis: waves of smooth muscles contractions that move food through the esophagus toward the stomach 29.Impulse the message carried by a neuron
14.Saliva: fluid released from glands in the mouth that play 30.Brain the part of central nervous system that is located in the skull and controls most function of the body
15.Enzymes: proteins that speed up chemical reaction in the body 31.Spinal cord:thick column nervous tissues that links to the brain to most of the nerves that branch through the body
16.Elimination:Act of removal of materials from the body 32.Reflex:Automatic response that occurs without concision control through the somatic nervous system
17.Circulatory system : an organ system that transports need material to cells and removes 33. Negative feedback: the process by which a system is turned off by the condition it produces
Created by: user-1717826
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