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Human science
The Brain- hardware 1st year nursing student
Question | Answer |
---|---|
The Central Nervous System | The Brain and the spinal cord |
3 types of neurons | 1) Sensory- a neuron that responds to input from sensory organs 2) motor neuron - a neuron tha sends signals to muscles and controls movement 3) Interneuron- a neuron that is connected to other neurons, not to sense organs or muscles. |
structure of a neuron | cell body, cell membrane, axon, terminal button, dendrite. |
Neural impulses | neurons carry messages because their membranes have a special property called excitability. |
Neurotransmitter (acethylcoline or noradrenaline) | when a nerve impluse reaches the terminal button, it causes the release of this chemical |
neurotransmitter -Glutamate | excitatory effects |
neurotramitter -Gaba | inhibiting effects |