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Biology Mind Maps- The Nervous System
13/02/2023
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The Nervous system is an Organ system that enables organisms to react to their environments and to coordinate their behaviour. The coordinators of the nervous system are the brain and the spinal cord. They are the central nervous system. Stimulus receptor coordinator effector → → response A Synapse is a junction between 2 neurones... Chemical The Nervous System & cell receptor nerve, Synapse 1. The electrical impulse reaches the end of the nerve cell at the synapse. BOODS 2. A chemical then moves across the synapse from one cell to another, this happens via diffusion. -nerve 3. The chemical starts an electrical impuise in the next impulse nerve cell and then the signal is passed on. Scanned with CamScanner Central Nervous system - The brain & Spinal cord. Neuron Nerve cell, it transmits electrical impulses from one part of the body to another. Nevron Nerve cel that transmits electrical impulses to the CNS. - Sensory Motor Nevron-A nerve cell that transmits electrical impulses a way from the CNS. Relay Neuron - A type of nerve cell that makes up the CNS. synapse-A gap between two neurons.... Neurotransmitters - Chemicals that carry a message across the synapse. The Nervous System Living things respond to changes in their environment. These changes are called stimuli. Peripheral nervous system -secondary nervous system, controls your motor output. (e.g. running, walking, etc) Stimulus something in the outside environment. Receptor the cell that...
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Alternative transcript:
detects the change. Coordinator the cell that decides what the effector should do (in the brain). Effector-the muscle or gland that reacts to the change. Response what the body does to react to the change. Scanned with CamScanner Reaction time: method Hold the ruler just above the hand of the person being tested. Then drop the ruler without warning. The person catches the ruler and you record the distance the ruler fell before it was caught. Then you use a conversion table to convert the distance (cm) into a reaction time (seconds). IV:level of caffine in bloodstream. DV: reaction time, the distance the ruler was caught. CV: height above hand, level of distraction, amount of warning. Required practical Required practical 8 computer based method: https://humanbenchmark.com/tests/reaction time. Record your first 10 reaction times. Practice for 5 minutes. record your last 10 reaction times. alo calculate the percentage change in your reaction time.. IV: amount of practice DY: the reaction time (seconds) CV: the website, distractions, using dominant hand, time of day, brightness of screen. Scanned with CamScanner