Nevous system (GCSE BIOLOGY)
- Created by: Erica
- Created on: 04-03-13 19:24
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- Biology - Nervous system
- synapses
- impules comes to the end of its pathway before the synapse gets in the way
- Impluses travel across the synapses by a chemicap substance called neurotransmitters
- These neurontransmitters travel across the synapse then connect to the repeptors on the other side of the synapse
- These impulses are slowed down slightly by the synapses
- Impluses travel across the synapses by a chemicap substance called neurotransmitters
- Role of the synapse...
- Ensures that the impulses can only travel in one direction
- impules comes to the end of its pathway before the synapse gets in the way
- Reflec arc
- receptor detects a stimulus (change in the environment)
- sensory to relay
- relay to motar
- motar to effector
- effector respondes
- motar to effector
- relay to motar
- sensory to relay
- REALLY SILLY RABBITS MOVE EFFCIENTLY.
- receptor detects a stimulus (change in the environment)
- Myelin Sheath
- Insulates the axon
- Helps the impulses to be carried faster
- Sensory Cell
- "Body" and neuclus coming off at the centre of the nerve, has the neucleus in it
- Axon endings pass the impulse on to other neurons
- Motar Neuron
- Neucleus in a "Star shaped body" at the beginning of the cell
- Connects to a muscle
- synapses
- These impulses are slowed down slightly by the synapses
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