Terms in this set (41) Which is the correct sequence in the transmission of a neural impulse?
dendrite, cell body, axon, synapse
. Multiple sclerosis is an autoimmune disease that directly affects a certain part of the neuron.
What is the correct sequence in the process of synaptic transmission?
The correct sequence of the events of synaptic transmission is d) 5-3-2-4-1.
Which is the correct order of transmission of a message through a neuron during an action potential?
When neurons communicate,
the neurotransmitters from one neuron are released, cross the synapse, and attach themselves to special molecules in the next neuron called receptors
. Receptors receive and process the message, then send it on to the next neuron. 4. Eventually, the message reaches the brain.
What is correct sequence of an electrical through a neuron?
The correct sequence is
D, C, A, B, E, G, F, and H
. The action potential first synapses from one neuron to the dendrites of the adjacent neuron.
What is the correct order for the transmission of an impulse in a motor neuron?
The impulse travels through the cell body and is
carried through the axon to the end brush
, a collection of fibers that extend off the axon. Here, the impulse triggers a release of chemicals that allow the impulse to travel through the synapse—the space between the axon of one neuron and the dendrites of the next.
When the nerve signal reaches the axon terminal What happens next?
Within a cell, action potentials are triggered at the cell body, travel down the axon, and end at the axon terminal. The axon terminal has vesicles filled with neurotransmitters ready to be released. The space between the axon terminal of one cell and the dendrites of the next is called the
synapse
.
How do neurons communicate with one another?
Neurons communicate with each other via
electrical events called ‘action potentials’ and chemical neurotransmitters
. At the junction between two neurons (synapse), an action potential causes neuron A to release a chemical neurotransmitter.
What are the steps of neurotransmission?
Neurotransmitter release from the presynaptic terminal consists of a series of intricate steps: 1) depolarization of the terminal membrane, 2) activation of voltage-gated Ca
2 +
channels, 3) Ca
2 +
entry, 4) a change in the conformation of docking proteins, 5) fusion of the vesicle to the plasma membrane, with subsequent …
What are the four steps of neurotransmission?
The animations are organized into four sections or “Steps,” each focusing on a different aspect of synaptic transmission:
I. Synthesis and Storage; II. Release; III. Postsynaptic Receptors; IV.
What are the steps of neural transmission?
- Depolarization: A stimulus starts the depolarization of the membrane. Depolarization, also referred to as the “upswing,” is caused when positively charged sodium ions rush into a nerve cell. …
- Repolarization. …
- Refractory Phase.
Which is the correct order of neural communication?
Ans: The order in which the neural transmission is passed through the neuron body is:
Cell body → Axon → Nerve Terminal
. The neural communication from the nerve terminal then passes through the synapse and excites the next neuron through the dendrites of a neuron or receptors of electrically excitable muscle cells.
Which of the following is the correct order of how information is processed in a neuron?
The flow of information moves in the following direction:
dendrite to soma to axon to terminal buttons to synapse
. Although there are many types of neurons among the estimated ten billion in the human brain, each typically shares the characteristics shown in Tutorial 2.
What are the five steps to the nerve impulse pathway?
- Resting potential. The membrane of a neuron is normally at rest with established concentrations of sodium ions (Na+) and potassium ions (K+) on either side.
- Depolarization. A stimulus begins the depolarization of the membrane.
- Repolarization.
- Refractory Phase.
What type of process the transmission of nerve impulse is?
The nerve impulse is transmitted from one neuron to the next through a gap or cleft called a synaptic gap or cleft or a synapse by
a chemical process
. Synapses are specialized junctions through which cells of the nervous system communicate to one another and also non-neuronal cells such as muscles and glands.
Which of the following is the first step in the pathway of a nerve impulse?
Nerve impulses begin in
a dendrite, move toward the cell body
, and then move down the axon. A nerve impulse travels along the neuron in the form of electrical and chemical signals.
Which of the following is the cause for transmission of nerve impulse through nerve Fibre in a single direction?
The nerve impulses are produced upon stimulus receipt. The impulses of the nerves are distributed in one direction.
The release of neurotransmitters
is the key cause for unidirectional transmission. The telodendrites, which are present at the ends of the axon, release neurotransmitters such as acetylcholine.
