click below
click below
Normal Size Small Size show me how
Regulation Vocab
| Term | Definition |
|---|---|
| regulation | the adaption of form or behavior of an organism to changed conditions. |
| stimulus | a thing or event that envokes a specific functional reaction in an organ or tissue |
| neuron | a nerve cell that transmits nerve impulses |
| impulse | a signal that travels in the nervous system and releases neurotransmitters. |
| effector | a small molecule that binds to a protein and regulates its biological activity. |
| receptor | protein molecule that receives chemical signals from outside a cell. |
| neurotransmitters | a chemical substance that is released at the end of a nerve fiber. |
| irritability | the ability that living organisms have to respond to changes in their environment. |
| dendrites | the top of a nerve cell that is the first part of the cell to receive the signals |
| cyton( cell body) | the central part of the nerve cell |
| axon | the long thread like part of the nerve cell |
| hormones | chemical messengers |
| glands | part of the body that secretes particular chemical substances |
| target cells/tissue/organs | a cell that has a specific receptor for an antigen or hormone or drug |
| hypothalamus | the region of the brain that controls the autonomic nervous system |
| hyposecretion | production of bodily secretion at an abnormally slow rate |
| hypersecretion | production of bodily secretion at an abnormally fast rate |
| feedback mechanism | a system in which the system responds to a perturbation |
| reflex | an immediate involuntary action to a stimulus |
| cerebrum | one of the main parts of the brain that controls voluntary actions and balance |
| cerebellum | one of the main parts of the brain that controls the central regulation of movement |
| medulla oblongata | one of the main parts of the brain that controls vital body functions |