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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
Organisms or fluids attempting to enter the cell body of a neuron must first pass through the?
cell membrane, which acts as a protective barrier around the neuron. This selective barrier controls the passage of substances in and out of the neuron to maintain its internal environment.
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.
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.
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 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.
The first pathway of cellular respiration is?
glycolysis.
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-
Which neuron delivers sensations to the cns?
Afferent neurons receive and transmit impulses to the CNS.
