Flashcards: Human Body Systems III
All 12 terms
Terms | Definitions |
|---|---|
 Esophagus | The long straight tube that connects the pharynx to the stomach |
| Pancreas | The organ that lies behind the stomach and that makes digestive enzymes and hormones that regulate sugar levels |
| Liver | Organ that makes bile (liquid that helps digestion), stores and filters blood, and stores excess sugars |
| Gallbladder | A sac-shaped organ that stores bile produced by the liver |
| Kidneys | Pair of organs that that filter water and wastes from the blood and that excrete products as urine |
| Nephron | The microscopic filters in the kidney that remove wastes from the blood |
| Central Nervous System | The part of the nervous system that includes the brain and the spinal cord |
| Peripheral Nervous System | All of the parts of the nervous system except for the brain and the spinal cord |
| Neuron | A nerve cell that is specialized to transfer messages in the form of fast-moving electrical energy called impulses |
| Nerve | A collection of nerve fibers (axons) through which impulses travel between the CNS and the other parts of the body |
| Gland | A group of cells (tissue) that make special chemicals for the body. |
| Hormones | Chemical messengers made by the endorine glands that regulate (control) body functions by causing changes in other cells or tissues. |
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