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Human Body Systems
| Term | Definition |
|---|---|
| Tissue | a group of similar cells that perform a specific function. |
| Organ | a body structure that is composed of different kinds of tissues that work together. |
| Organ system | a group of organs that work together to preform a major function. |
| Gland | and organ that produces and releases chemicals either through ducts or into the bloodstream. |
| Hormone | 1] the chemical produced by an endocrine gland. 2) a chemical that affects growth and development. |
| Stress | The reaction of a person's body to potentially threatening, challenging, or cause of disturbing events. |
| Digestion | The Process by which |
| Interactions | The direct effect on one thing has on the other. |
| Tissue | a group of similar cells that perform a specific function. |
| Nutrients | The substance in food that provide the wall the bodies cell need to carry out all the essential processes by yourself make sure you stay safe |
| Stable | resistant to a sudden change |
| Absorption | The process by which nutrients molecules pass through the wall of the digestive system into the blood |
| Carbohydrates | A energy-rich organic compound such as sugar or starch that is made of the elements carbon hydrogen and oxygen |
| Peristalsis | Waves of smooth muscle contractions that move food through the esophagus toward the stomach |
| Saliva | Fluid released from glands in the mouth that play an important role in mechanical and chemical digestion |
| Enzymes | Proteins that speed up chemical reactions in the body |
| circularity system | An organ system that transport needed materials to cells and remove waste |
| Contract | To draw together to reduce in size |
| Artery | A blood vessel that carries blood away from the heart |
| vein | A blood vessel that carries blood back into the heart |
| Capillary | A tiny blood cell with substance and salt Exchange between the blood and body cells |
| Lymph | A fluid that travels through the lymphatic system consisting of water white blood cells and dissolved materials |
| Bronchi | Two passages that direct air into the lungs |
| Alveoli | Tiny-thin Walled sacs of long tissue specialized for the movement of gases between air and blood |
| Excretion | The process of moving waste |
| Nephron | Small filtering structure in the kidneys that remove waste from blood and produces urine |
| Neuron | A cell that carries information through the nervous system |
| Synapse | The Junction where one neuron can transfer an impulse to another neuron |
| Impulse | The message Carrie by a neuron |
| Brain | The part of the central nervous system that is located in the Brick Store and controls most functions of the body |
| Spinal cord | Thick columns of nervous tissue that links to the brain to most of the nerves that Branch out through the body |
| Reflex | Automatic response that occurs without Consciousness control throughout the somatic nervous system |
| Negative feedback | The process by which a system is turned off by the condition it produces |
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