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| Question | Answer |
|---|---|
| Regulation | |
| Irritability | Irritability is the excitatory ability that living organism have to respond to changes in their environment. |
| Impulse | Impulse is the change of momentum of an object when the object is acted upon by a force for an interval of time. |
| Stimulus | that can elicit a physiological response in a cell |
| Response | |
| Receptor | receiving messages from substances in the bloodstream and then telling the cells what to do. |
| Cell body | The cell body is the spherical part of the neuron that contains the nucleus and connects to the dendrites, which bring information into the neuron, and the axon, which sends information to other neurons. |
| Convolution | the surface of the brain and especially of the cerebrum. |
| Axon | the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells. |
| Reflex arc | A reflex arc is a neural pathway that controls a reflex. |
| Cerebrum | The largest part of the vertebrate brain, filling most of the skull and consisting of two cerebral hemispheres divided by a deep groove and joined by the corpus callosum, a transverse band of nerve fibers. |
| Cerebellum | the part of the brain at the back of the skull in vertebrates. Its function is to coordinate and regulate muscular activity. |
| Medulla oblongata | the part of the brain that joins the spinal cord and is concerned especially with control of involuntary activities necessary for life. |
| Central nervous system | the complex of nerve tissues that controls the activities of the body. |
| Peripheral nervous system | the nervous system outside the brain and spinal cord. |
| Meninges | helping to keep your nervous system safe from harm. |
| Neurotransmitter | to stimulate neighbouring neurons or muscle or gland cells, thus allowing impulses to be passed from one cell to the next throughout the nervous system. |