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Human Body Rb (notQ)
| Term | Definition |
|---|---|
| Homeostasis | The maintenance of stable internal conditions in an organism. |
| Joint | A place where two bones come together. |
| Spongy Bone | Layer of bone tissue having many small spaces and found just inside the layer of compact bone. |
| Compact bone | Hard dense bone tissue that is beneath the outer membrane of the bone. |
| Cartilige | a firm and elastic and flexible type of connective tissue. |
| Ligament | Strong connective tissue that holds bones together in moveable joints. |
| Tendon | Strong connective tissue that attaches muscle to the bone. |
| Red marrow | Produces many of the bodies cells. |
| Yellow marrow | Stores fat that can serve as an energy source. |
| Skeletal muscle | A muscle that is attached to the bones of the skeleton and provides the force that moves bones. |
| Striated muscle | A muscle that appears banded; also called the skeletal muscle |
| Smooth muscle | Involuntary muscle found inside many internal organs of the body. |
| Cardiac muscle | Muscle tissue found only in the heart. |
| Integementary system | Skin, protects, makes Vitamin D |
| Epidermis | The outer layer of the skin |
| Dermis | The inner layer of the skin |
| Melanin | A pigment that gives skin color |
| Follicle | Structure in the Dermis of the skin from which strand of hair grows |
| Mechanical Digestion | Foods that are physically broken down into smaller peices |
| Chemical Digestion | Chemicals produced by the body breaks foods down into smaller chemical building blocks |
| Epiglottis | A flap of tissue that seals off the windpipe and prevents food from entering |
| Peristisis | Involuntary waves of muscle contraction. |
| Esophagus | A muscular tube that connects the mouth to the stomache |
| Absorption | The process by which nutrients pass from the digestive system into the blood. |
| Villius | Tiny small fingers that cover the inner surface of the small intestine and provide a large surface area through which digested food is abosrbed |
| Pacemaker | A Group of cells located in the atrium that sends out signals that makes the heart muscles contract and that regulates heartbeat rate. |
| Artery | A Blood vessel that carries blood away from the heart. |
| Capillary | A tiny blood vessel where substances are exchanged between the blood and the blood cell. |
| Vein | A blood vessel that carries blood back to the heart. |
| Plasma | The liquid part of the blood. |
| Red Blood Cells | A cell in the blood that takes up oxygen in the lungs and delivers it to cells elsewhere in the body. |
| Hemoglobin | An iron-Containing protein that binds chemically to oxygen molecules. |
| White Blood Cells | A blood cell that fights disease. |
| Platelet | A cell fragment that plays an important part in forming blood clots. |
| Lymph Node | A system that filters lymph. Trapping bacteria and other microorganisms that cause disease. |
| Lymph | The fluid that the lymphatic system collects and returns to the bloodstream |
| Cillia | The hairlike projections on the outside of cells that move in a wavelike manner. |
| Pharynx | The throat. |
| Trachea | The windpipe. A passage through which air moves in the respiratory system. |
| Alveoli | Tiny sacs of lung tissue specialized for the movement of gases between air and blood. |
| Diaphram | A large muscle located at bottom of a mammals rib cage that functions in breathing. |
| Larynx | The voice box. |
| Urea | A chemical that comes from the breakdown of proteins. |
| Ureter | A narrow tube that carries urine from one of the kidneys to the urinary bladder. |
| Kidney | A major organ of the execratory system that removes urea and other wastes from the blood. |
| Nephron | Small filtering structure found in the kidneys that remove wastes from the blood and produces urine. |
| Urinary Bladder | A sack like muscular organ that stores urine until it is eliminated from the body. |
| Excretion | The process by which the wastes are removed from your body. |
| Urethra | A small tube through which urine flows from the body. |
| Cardiovascular System | The body system that consists of the heart, Blood vessels , and blood; Circulatory system |
| Atrium | Each of the two upper chambers of the heart that recieves blood that comes into the heart. |
| Valve | A flap of tissue in the heart or vein that prevents blood from flowing backward. |
| Ventricle | A lower chamber of the heart that pumps blood out of the lungs and into the body. |
| Coronary Arteries | An artery that supplies blood to the heart itself. |
| Arteries | A blood vessel that carries blood away from the heart. |
| Pulse | The alternating expansion and relaxation of an artery wall as blood travels through an artery. |
| Diffusion | The process by which molecules move from an area of higher concentration to lower concentration. |
| Blood Pressure | The pressure that is exerted by the blood against the walls of the blood vessels. |
| Heart attack | A condition in which blood flow to part of the heart is blocked causing heart cells to die |
| Pathogens | Viruses that infect the body. |
| Infectious Disease | A disease caused by the presence of a living body. |
| Toxin | A poison produced by bacterial pathogens that damage cells. |
| Phagocyte | A white blood cell that destroys pathogens by engulfing them and breaking them down. |
| Inflammatory Response | Defense system:a fluid + white blood cells leak from blood vessels into tissue and the white blood cells destroy pathogens |
| B Cells | A lymphocyte that produces proteins that help destroy pathogens. |
| Anti-Bodies | A protein produced by the B Cells of the immune system that destroy pathogens. |
| Anti-Gens | A molecule the the immune system recognizes either as part of the body or as coming outside the body. |
| T Cells | A lymphocyte that identifies pathogens and distinguishes one pathogen from another. |
| Immune Response | Part of the body's defense against pathogens,in which cells of the immune system to react to each kind of pathogen with a defense targeted specifically for pathogens. |
Created by:
Sweete
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