an action forms
As potassium leaves the neuron, the inside of the cell will become progressively more negative, which will attract the positive potassium ions, preventing further exodus. If this electrical force is great enough, it will actually draw potassium ions from the outside of the cell back inside.
The leg wouldn't be able to receive or transmit impulses and information from the central nerves system CNS to the muscle and glands
The electrical impulse travels into the dendrites, the "input" of the neuron, and into the soma or "body" where the signal gets processed. From there, the processed signal travels down the axon or "output" and into the dendrites of another neuron.
An Impulse
Depends on the function of the neuron, the range goes from once per sec to 1000 pulses per sec.
an action potential moves along the neuron
an action potential moves along the neuron
The neuron in your finger senses the temperature first. It sends a signal to your brain, which then interprets the information and signals your muscles to move your hand away from the heat source.
An action potential forms :) -Apex-
an action potential moves along the neuron
The first thing that happens when you touch something hot is the activation of specialized nerve endings called thermoreceptors in your skin. These thermoreceptors detect the change in temperature and send a signal to the brain through the neuron to alert you of the heat and trigger a reflex action like pulling your hand away.
The nerve cells that detect heat (located within your Dermis) activate when touching a hot surface. This nerve impulse then travels through your central nervous system to your brain when it is translated as "pain" or "damage" to the area. The signal travels back down the arm as a reaction to move the stimulous and causes you to move your hand.
Ions flow into the neuron. An action potential forms moves along the neuron. A response occurs, here, an aversion response... your body pulls your hand and finger away.
When neurotransmitters communicate an inhibitory message to the postsynaptic neuron:
The function of a neuron is to transfer messages throughout the brain. These neurons are all attached and interpret everything that happens.
During an action potential in a neuron, there is a rapid change in electrical charge across the cell membrane. This change allows for the transmission of signals along the neuron.
During an action potential, the neuron's electrical charge rapidly changes from negative to positive, allowing for the transmission of signals along the neuron.