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Animal Systems

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Term
Definition
Small intestine   absorbs most of the nutrients that are consumed  
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Large intestine   absorbs water from waste  
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Plasma   Yellowish fluid that makes up part of the blood and transports nutrients and hormones throughout the body  
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Esophagus   Tube that connects the throat to the stomach  
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Liver   Large dark organ secretes bile (enzyme important in fat digestion) into the intestines, detoxifies chemicals and breaks down drugs  
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Pancreas   Spongy organ behind the stomach that produces enzymes important for digestion of biomolecules and produces insulin (enzyme critical to cellular use of sugar)  
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Endocrine system   System of glands and hormones within an organism which work together for the purpose of chemical regulation  
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Gland   Organ responsible for production of hormones; part of endocrine system  
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Stimulus   Something that leads to a reaction or response  
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Response   The reaction to a stimulus  
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Negative Feedback Loop   Results in the counteraction (opposite action) of the stimulus  
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Positive Feedback Loop   Results in the increase of the stimulus  
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Urinary System   System that helps maintain homeostasis by removing waste  
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Nervous System   System made of brain and neurons for the purpose of electrochemical regulation  
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Homeostasis   Condition of balance and equilibrium  
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Lymphatic System   System that helps maintain homeostasis through removal of waste from tissue and aiding immune system  
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Kidney   Major organ of the urinary system responsible for removing liquid waste from the body  
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Neuron   Cell responsible for sending electrochemical signals  
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Reproductive System   System of sex organs within an organism which work together for the purpose of sexual reproduction  
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Pregnancy   Gestation; period from conception/ fertilization to birth  
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Gonads   Organ that produce sex cells; testis or ovary  
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Hormone   Regulatory chemical that is produced in glands of the endocrine system  
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Ovum   Female sex cell; egg  
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Sperm   Male sex cell  
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White Blood Cell   cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders; made in bone marrow  
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T-cell   type of white blood cell that actively participates in immune response; made in thymus  
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B-cell   type of white blood cell that produces antibodies that recognizes specific antigens  
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Antigen   toxin or other foreign substance that induces an immune response in the body, especially the production of antibodies  
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Antibody   Y-shaped protein produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses, especially antigens  
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Inflammatory Response   occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause; damaged cells release chemicals; chemicals cause blood vessels to leak fluid into the tissues, causing swelling  
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Created by: NEISDSci
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