the impulse would spread bidirectionally
The impulse would spread bidirectionally.
It is a neuron that is at its resting potential, not stimulated by input from other neurons.
sodium ions enter the postsynaptic neuron.
The synapse between pre synaptic and post synaptic neuron. Here the acetylcholine is released. It is destroyed by the enzyme acetylcholinesterase in milliseconds, once the impulse is passed to the post synaptic neuron
Sensory receptor located at the distal end of a neuron or an associated sensory structure. When stimulated it creates a receptor potential, when that reaches its threshold, it will trigger 1 or more nerve impulses in the sensory neuron.
Essentially, it is the interneuron. The body has numerous sensory receptors. The sensory receptors are stimulated an send their signal to the central nervous system and synapse or connect with an interneuron which is the processing center. The interneuron then synapses or connects with the motor neuron which sends a message/instruction by way of the motor neuron to skeletal muscle, smooth muscle, cardiac muscles, or glands. This is true, but to add more information, the Interneuron is also known as "relay neuron", "association neuron" or "local circuit neuron".Source:http://en.wikipedia.org/wiki/Interneuron
It is a neuron that is at its resting potential, not stimulated by input from other neurons.
A neuron will generate action potential when it is stimulated by a neurotransmitter.
When a neuron is stimulated enough, it reaches its threshold potential and fires an action potential. This action potential travels down the axon of the neuron, allowing for the communication of signals to other neurons or cells.
irritability (ability to be stimulated)
irritability (ability to be stimulated)
False( When a stimulus acts on a neuron, it increases the permeability of the stimulated point of its membrane to sodium ions. )
When a neuron is stimulated by another neuron, an action potential is generated and travels down the axon of the stimulated neuron. This action potential triggers the release of neurotransmitters at the synapse, which then binds to receptors on the postsynaptic neuron, leading to either excitation or inhibition of the postsynaptic neuron.
motor unitUnit
depolarization
sodium ions enter the postsynaptic neuron.
depolarization
The cell membrane becomes more permeable to the sodium potassium ions.