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nervous regulation
| Definition | |
|---|---|
| regulation | a rule or directive made or maintained by an authority |
| irritabilty | the quality or state of being irritable |
| impulse | a sudden strong and un reflective urge or desire to act |
| response | any behavior of a living organism that results from an external or internal stimulus |
| receptors | an organ or cell able to respond to light,heat or external stimulus and transmit a signal to a sensory nerve |
| neuron | a specialized cell transmitting nerve impulse |
| effector | an organ or cell that acts in response to a stimulus |
| cell body | the nucleus containing central part of a neuron exclusive of its axon and dendrites that is the major structure element of the grey matter of the brain and spinal cord the gangilla and the rentina |
| dendrites | a short branched extension of a nerve cell , along which impulse received from other cells at synapses are transmitted to the cell body |
| cell body | the nucleus containing central part of a neuron exclusive of its axon and dendrites that is the major structure element of the grey matter of the brain and spinal cord the gangilla and the rentia |
| axon | the long threadlike part of the nerve cell along which impulse are conducted from the cell body to the other cell |
| meninges | the three membranes that line the skull and vertebral canal and enclose the brain and spinal cord |
| cerebrum | the largest part of the brain ,consisting of two lobes , the left and right cerebral hemisphere that controls the thought and the voluntary movement |
| cerebellum | the part of the brain at the back of the skulls in vertebrates . its function is to coordinate and regulate muscular activity |
| medulla oblongata | the continuation of the spinal cord withing the skull ,forming the lowest part of the brainstem and containing control centers for the heart and lungs |
| central nervous system | the complex nerve tissues that control the activities of the body . in vertebrates it comprises the brain and the spinal cord |
| peripheral nervous system | the nervous system outside the brain and spinal cord |
| meninges | the three membrane that line the skull and vertebral canal and enclose the brain and the spinal cord |
| nuerontransmitters | a chemical substance that is released at the end of a nerve fiber by the arrival of nerve impulse |
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_lisss.k
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