Friday, September 27, 2013

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-Nervous System 3 functions of the nervous arranging: -Receives and relays information -Monitors and responds to privilege and external changes -Controls and coordinates all personify functions Sensory: become cognisant of stimuli: change in environment Integative: memory, emotions, conscience, decisions Response: muscular tissues, what did you do?
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Neuron- ( touchwood mobile ph unmatched) cadres that stock messages throughout the nervous system Nerve impulse- electrical signals, coded method acting from nerve mobile phone Sensory nerve cellular phone: nerve cell that carries impulses from the genius electric orga ns to the brain and spinal cord push neuron: neuron that carries impulses from the brain and spinal cord to muscles and secretory organs Interneuron: cell that connects the motor and receptive neurons (only found in brain) Cell body- centerfield circumstances of the neuron that contains the nucleus and much of the cytoplasm Dendrite- part of the neuron that is an source from the cell body of a neuron that carries impulses from the environment to the cell body Axon- long fiber that carries impulses onward from the cell body of a neuron Axon terminals- vitiated swellings in a neuron at the end of an axon that makes connections with next neuron Myelin- signification composed of liplids and protein that forms an insulated sheath near an axon, and makes a go against impulse Neurilemma- outermost covering of a neuron allows nerve to grow back Threshold stimulus- stripped level of a stimulus required activating a neuron Receptor- excess sensory neuron in a sense organ that receives stimuli from external environment (! nose, essences, ears) Effector- muscle of gland that brings about a coordinated response to a stimuli Synapse- arrest of contact at witch an impulse is passed from one cell to some other Neurotransmitters- substance used by one neuron to signal another -Eye Sclera- white part of the kernel that helps maintain the shape and provides muscle that moves the eye Choroid- pigmented, contains blood vessels of eye, and becomes the disk-like anatomical structure called the iris Iris- part of the eye that gives it its color Pupil- in the middle... If you pauperism to get a entire essay, order it on our website: OrderCustomPaper.com

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