bio terms last week
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19 terms
Terms | Definitions |
|---|---|
 Antibody | Proteins produced by plasma cells in the blood in reaction to foregin substances or sntigens. |
| Antigen | Foregin substances that stimulate the production of antibodies in the blood. |
| Aorta | Largest blood vessel in the human body that recieves oxygen-rich blood from the left ventricle and sends it out to the body. |
| Diaphragm | The sheet of muscle in the chest cavity of mammals that contracts during inhalation and relaxes during exhalation. |
| Epiglottis | Flap of skin that cover the opening of the windpipe during swallowing. |
| Esophagus | Muscular tube that moves food from the mouth to the stomach by smooth muscle contractions. |
| Gallblader | Small, Bile-storing organ of the digestive system. |
| Kidney | Organs of the urinary system, removes nitrogenous wastes, controls sodium level of blood, and regulates pH of blood. |
| Large Intestine | Tube in which indigestible material is passed to the rectum for elimination; sight of water absorption and synthesis of B and K vitamins. |
| Liver | Organ that produces many chemicals, including several needed for digestioin, that are delivered to the small intestine. |
| Platelet | Short-lived cell fragments contained in plasma; needed for blood clotting. |
| Rectum | Final segment of the digestive system; passes feces out of the body throught the anus. |
| Red Blood cell | Hemoglobin-containing cell in humans that transports oxygen and some carbon dioxice; loses it nuclei as it enters the bloodstream, resulting in a limited life span. |
| Small intestine | Narrow, muscular tube in which digestion is completed; connects stomach to large intestine. |
| Stomach | Pouch-like, muscular digestive organ that secretes acids and enzymes, food leaves the stomach in a thin, acidic liquid. |
| Trachea | The windpipe, lined with constantly beating cilia that prevent foreign particles from reaching the lungs. |
| Ureter | Tube that transports urine from each kidney to the urinary bladder. |
| Urethra | Tube through which urine is eliminated from the body. |
| Urinary Bladder | Smooth muscle bag in which urine is stored untill it leaves the body through the urethra. |
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