Nervous System Bowen
Terms
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- what is synapse
- space between a neurons axon and its target. also called synaptic cleft
- what are the 3 structures of neurons
- sensory, motor, and interneuron
- the impulse travels from the _________ to the ___ ______??
- dendrites to end plates
- a mylin sheath is??
- formed by the schwann cells and insulates the axons. this speeds up the transmission but is found only the PNS
- all pathways must include three things???
- reception, transmission, and processing,
- what is the all or none theory??
- the nueron either responds fully or not at all
- CNS stands for???
- central nervous system
- what happens in the depolarizing phase??
- neuron is stimulated enough to cause Na+ gates to open causes an in-rush of Na+.
- summation is?
- the sum effect of all neurontransmitters acting on an neuron.
- why does the brain react so much slower when u get hurt(ex: u say ouch after u pull away??)
- the reflex arc sends the message to your spinal cord and back to your arm before it is sent to your brain to say ouch.