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This will develop positive charge outside the axonal membrane and negative charge on inner side.

Ionic gradient across the resting membrane is maintained by active transport of ions by sodium-potassium pump.

When neuron is not conducting impulse (resting), axonal membrane is more permeable to K+ ions and impermeable to Na+ ions.

Ion channels are present in neural membrane which is selectively permeable to different ions.

Generation and Conduction of Nerve Impulse Found in autonomous and somatic neural system.

Unmyelinated- fibre is enclosed by Schwann cells that do not form myelin sheath around the axon.

The gap between two myelin sheaths is called nodes of Ranvier.

Myelinated– fibres are enveloped with Schwann cells to form myelin sheath around the axon.

Unipolar– cell body with only one axon found in embryonic stage.

Bipolar– one axon and one dendrite found in retina of eyes.

Multipolar– one axon and two or more dendrite found in cerebral cortex.

Based on number of axon and dendrites neuron are of three types.The axon is long fibre having branched structure at the end that terminates into knob like structure called synaptic knob. Short fibres projecting out from cell body is called dendrites. Cell body contains cytoplasm, cell organelles and Nissl’s granules.Neuron is made up of three major parts- cell body, dendrite and axon. Neuron as Structural and Functional Unit of Neural System Autonomic neural system transmits impulses from CNS to involuntary system and smooth muscles. Somatic neural systems relay impulses from CNS to skeletal muscles. Efferent fibres- transmit regulatory impulses from CNS to concerned peripheral organs.Afferent fibres- transmit impulses from tissue/organ to CNS.Peripheral nervous system includes all nerves associated with CNS.It is the site for information processing and control. Central nervous system (CNS) includes brain and spinal cord.Vertebrates have highly developed neural system. In insects it consists of brain and a number of ganglia. In hydra neural system is composed of network of neuron. Neural system of animals is composed of specialized cells called neuron, which can detect, receive and transmit different kinds of stimuli.The endocrine system provides chemical integration through hormones. Neural system provides an organized network of point to point connection for quick coordination.Coordination is the process through which two or more organs interact and complement the function of each other.Neural Control and Coordination class 11 Notes Biology Revising notes in exam days is on of the best tips recommended by teachers during exam days. The revision notes help you revise the whole chapter in minutes. These are the Neural Control and Coordination class 11 Notes Biology prepared by team of expert teachers. Download revision notes for Neural Control and Coordination class 11 Notes Biology and score high in exams.

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