Neural System: Structure & Function — NEET Biology
🔥 Predicted for NEET 2027The neural system coordinates and integrates functions as well as metabolic and homeostatic activities of all the organs. Neurons, the functional units of neural system are excitable cells due to a differential concentration gradient of ions across the membrane. The electrical potential difference across the resting neural membrane is called the resting potential. The nerve impulse is conducted along the axon membrane in the form of a wave of depolarisation and repolarisation. At a chemical synapse, the membranes of the pre- and a post-synaptic neuron may or may not be separated by a gap called synaptic cleft. Chemicals involved in the transmission of impulses at chemical synapses are called neurotransmitters.
Adjacent to a frequently-asked paragraph in the same chapter.
10. I. It includes the midbrain, pons, and medulla oblongata. II. It forms the connection between the brain and spinal cord. III. It is part of the peripheral nervous system. IV. It is involved in reflex actions. Which are correct?
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