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What is junction between two neurons?
The junction between two neurons is called a synapse. At the synapse, the electrical signal in the first neuron (presynaptic neuron) is converted into a chemical signal in the form of neurotransmitters, which then travel across the synapse and are received by the second neuron (postsynaptic neuron) to continue the signal transmission.
What is the trigger point at which a neuron will fire called?
Its where there are a lot of sodium channels. Once the trigger zone is 'triggered' to threshold (from -70mV to -55mv), then an action potential occurs. trigger zone in MOTOR neurons are in the axon hillock and in SENSORY neurons, they're in the 1st unmyelinated area (first node of ranvier).
What are the first and last elements in a spinal reflex?
The first element in a spinal reflex is the sensory receptor, which detects a stimulus. The last element is the effector, which carries out a response to the stimulus.
The first voltage-regulated gates encountered along the neuron membrane which initiate the formation of action potentials are located on the neuron near the?
axon hillock
Part of the nerve cell that first receives the nervous impulse is the?
The dendrite of a neuron usually receives a chemical signal from another neuron, although a cell body (soma), or sometimes even an axon, of another neuron can receive the signal.Synapses which occur between an axon and a dendrite are called axodendritic synapses, while synapses between an axon and a cell body are called axosomatic synapses, and synapses between an axon and an axon are called axoaxonic synapses.
What is the first order of neuron of taste pathway?
bipolar ganglion
What is the first response a neuron makes to a stimulus?
The first response a neuron makes to a stimulus is called depolarization. This is when the neuron's electrical charge changes, allowing it to transmit an electrical signal down its length to communicate with other neurons.
The first pathway of photosynthesis was?
The first pathway of photosynthesis is the light reaction, which is the absorption of light energy from the sun by the chlorophyll in the plant. The pathway that follows this is the dark reaction or carbon fixation.
Describe the path an impulse would take for a reflex reaction?
When a sensory receptor detects a stimulus, an impulse is transmitted via a sensory neuron to the spinal cord. In the spinal cord, the impulse is processed and a response is generated, which is then sent via a motor neuron to the effector (muscle or gland) to carry out the reflex reaction. This entire pathway occurs rapidly and automatically without involvement of the brain.
What is the first part of the Neuron to receive an impulse from an adjacent neuron?
The first part of the neuron to receive an impulse from an adjacent neuron is the dendrites. Dendrites are branch-like structures that extend from the neuron's cell body and are specialized to receive signals from other neurons. When a neurotransmitter is released from the adjacent neuron's axon terminal, it binds to receptors on the dendrites, initiating an electrical impulse that travels through the neuron.
What is the branching fiber that is the first part of the neuron to receive a nervous system impulse called?
The branching fiber that is the first part of the neuron to receive a nervous system impulse is called a dendrite. Dendrites receive signals from other neurons or sensory receptors and transmit these signals to the cell body of the neuron. They play a crucial role in receiving and integrating incoming information in the nervous system.
If an impulse traveled down one neuron but failed to move on to the next neuron what happened to the first neuron?
Vesicle are not fusing with the membrane and releasing neurotransmitter.
When you touch something hot, a neuron in your finger senses the temperature. Which happens first?
an action potential moves along the neuron
What are the steps of Coagulation pathway?
Blood coagulation can occur either through an intrinsic or extrinsic pathway. The first step in either pathway begins with the production of Factor X,which marks the common pathway of coagulation.
When you touch something hot, a neuron in your finger senses the temperature. Which best describes the first reaction the neuron has?
An action potential forms :) -Apex-
What does the axon bulb do?
It starts the transmission of a neural signal from one neuron to another.An axon ends in an axon terminal, which ends in a small rounded tip called the axon bulb. Each terminal lies very close to either a dendrite or a cell body of another neuron, and the combination of the end of the first neuron, the beginning of the next, and the space between them is known as a synapse; when a neural impulse reaches the axon bulb, it is stimulated to release chemical messengers called neurotransmitters into the synaptic cleft (gap), which diffuse over to the second neuron, conveying the signal to the second neuron.
When you touch something hot a neuron in your senses the temperature. which happens first?
an action potential moves along the neuron
