an action potential moves along the neuron
causes chemically gated sodium channels to open
At rest sodium in the outside and potassium on the inside as action potential propagate along the axon, depolirization happens and sodium channel opens and allow sodium ions to flood into the neurone. A wave of deporization spread along the neuron, the neuron membrane contain specialised protein called channels. the channel from pore.
When this occurs, the membranes potenial drops, as potassium and sodium diffuse with their gradient.
get a book and find out
Dendrites are the beginning of action potentials as they are formed and then propagate through a neuron. At the synapse, the dendrites receive the incoming signal from neurotransmitters released at the terminal of the previous neuron.
an action potential moves along the neuron
an action forms
An action potential forms :) -Apex-
an action potential moves along the neuron
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 information each neuron processes determines how strong the action potential (electrical current) is within each neuron. An example of studying the electrical activity is by using temperature. The neurons which detect the temperature change are called sensory neurons. If you stimulate the neurons by leaving your fingertip in cold water for an adequate amount of time the electrical current within each neuron is increased as the temperature of your fingertip drops. The neurons within the fingertip sense the temperature drop and emit the electrical current, then the next neuron senses the temperature drop as the fingertip is held in the cold water and emits a stronger electrical current, the colder temperature in the next neuron as your finger is held in the water emits an even higher frequency and so on until the message arrives at the spinal cord and is then sent to the brain through the now very strong electrical current within the neurons informing it of the temperature decrease and then resulting in action outcome.
The function of a neuron is to transfer messages throughout the brain. These neurons are all attached and interpret everything that happens.
The substance tricks the neuron into releasing a flood of dopamine back in the synaptic cleft The substance tricks the neuron into releasing a flood of dopamine back in the synaptic cleft
causes chemically gated sodium channels to open
You feel horney and relaxed