Nervous System :: essays research papers

Nervous SystemThe two types of the scatterbrained system ar the Central nervous system and the peripheral nervous system. They are obligated for integrating, processing, and coordinating Sensory data and motor commands the central nervous system, which interprets afferent input and carry schooling to primary(prenominal)tain homeostasis. CNS cant be regenerate because a CNS consists of the spinal cord that bastardly if its break the spinal cord is break also. The peripheral nervous system consists of the nerves that branch from the brain and spinal cord. It is a compact bundle of nerve fibers primed(p) within the spinal cord. The PNS can be regenerate and it result regrow. The brain and spinal cord are the main parts of the nervous system. The brain controls every part of your body and is located top of our head inside our skull. The spinal cord with controls our movement. Nerve cellphones channel 3 parts dendrites, cell body and the axon. Dendrite is the receiving part o f the neuron. It is a curtly extension of the cell bodyAnd send signals toward the cell body and the cell body conducts nerve heart rates which in the transmission of the nerve impulses from the region to the early(a) cell. The axon is a single extension carries the message to the next neuron, which controls only of the nerves. The nerve impulse is response of the neuron. There are 3 classes of neurons sensational neurons, motor neurons, and interneurons. Neurons are also called nerve cells. A sensory neuron takes information from a receptor to the CNS. A motor neuron takes information away from the CNS. An interneuron transfer information between neurons in the CNS. It also direct out signal to the muscles resulting in contraction or movement. Nerves impulse occurs when an action potential changes rapidly. When action potential occurs, the sodium gates will open as Na+ flowing into the axon the changes from 65mV to +40mV, this is call depolarization and during repolarization the charge as k+exits the axon from +40 mV to 65mV.