0
Threshold
Anonymous
Add your answer:
Earn +20 pts
When an action potential reaches the end of a neuron it triggers the release of?
When an action potential reaches the end of a neuron, it triggers the release of neuotransmitters such as epinephrine (sympathetic) or achetylcholine (parasympathetic).
A slap on the back is more painful than a pat on the back because a slap triggers what?
A slap on the back is more painful than a pat on the back because a slap triggers more intense neural impulses. The slap cause more neuron to fire, and to fire more often.
A slap on the back is more painful than a pat on the back because a slap triggers?
A slap on the back is more painful than a pat on the back because a slap triggers more intense neural impulses. The slap cause more neuron to fire, and to fire more often.
When the neuron is sussiciently stimulated this process and triggers the action potential?
depolarization
When the neuron is sufficiently stimulated this process occurs and triggers the action potential?
depolarization
Why is that electrical impulses cannot pass from neuron to muscle cell?
The synapse, or connection, between a neuron and striated muscle is typically a chemical one called the neuromuscular junction. The pre-synaptic terminus coming from the neuron releases acetylcholine (ACh) which triggers an opening of the ionic channels on the muscle side. The depolarization triggers calcium entry into the cytosol of the muscle and contraction.
A neuron reaches its trigger point when?
Action potential is nerve impulse triggered when a neuron reaches its threshold, or trigger point for firing. Threshold trigger point for a neuron's firing about negative 50 millivolts.
What is the name of the point at which motor neuron synapses motor end plate?
cappilaries is the name of the point at which motor neuron synases motor end plate
What cause neuron to fire?
The neuron adds up all the excitatory and inhibitory inputs and fires when they reach its threshold of excitation.
Can a neuron fire half of its neurotransmitters?
no it's an "all or nothing"
A neuron starts to fire an impulse by the influx of what ions?
sodium
Explain the communication process of neurons in the brain?
When transmitting a message, a signal travels through the neuron until the cell ends at the terminal. In order to propagate the signal to the next neuron chemical messengers (neurotransmitters) are released into the inter-neuronal space (synapse). This triggers signal initiation in the second neuron.
