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Cell body, axon, and dendrites
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∙ 13y ago
Wiki User
∙ 13y agoNipples
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What purpose does the myelin covering an axon serve?
insulating sheath that speeds up the transmission of impulses along an axon
Why is calcium important to neurons?
Once you have the action potential made from the influx of Na traveling down the axon depolarizing it. The action potential reaches the axon terminals, the depolarization causes Ca2+ to enter the cell and that causes the release of the neurotransmitters out of the axon terminals and into the dendrites of the next axon to continue the signaling pathway.
What made up the midbrain?
The "midbrain" is called the Mesencephalon, considered part of the brain stem. The following are connected to the "midbrain": tectum, tegmentum, ventricular mesocoelia, cerebral peduncles. The "midbrain" is made up of Gyrus (brain ridges) surrounded by one or more sulci (brain fissures or depressions). The structure of the brain is made up of Neurons. Neurons are made up of the following regions: Dendrite, soma, Nucleus, Axon, Myelin sheath, Node of Ranvier, Schwann cell, Axon Terminal. Consisting of similar materials as most cells (DNA...etc).
What region of the cell secretes neurotransmitters?
an axon terminal
What are the parts of the neuron that the messages travels through?
The message travels through the axon and Schwann cells (which make up the axon) as an electrical message. When it reaches the dendrite, it is converted into a chemical message where it can be picked up by another neuron.
The axon is made up of?
what is the axon made of
What purpose does the myelin covering an axon serve?
insulating sheath that speeds up the transmission of impulses along an axon
Why is calcium important to neurons?
Once you have the action potential made from the influx of Na traveling down the axon depolarizing it. The action potential reaches the axon terminals, the depolarization causes Ca2+ to enter the cell and that causes the release of the neurotransmitters out of the axon terminals and into the dendrites of the next axon to continue the signaling pathway.
What is the fatty materiel that covers the axon and helps with nerve impulses?
It is called as myelin sheath. It acts as an insulator of the electrical wire. It is made up of cells.
What made up the midbrain?
The "midbrain" is called the Mesencephalon, considered part of the brain stem. The following are connected to the "midbrain": tectum, tegmentum, ventricular mesocoelia, cerebral peduncles. The "midbrain" is made up of Gyrus (brain ridges) surrounded by one or more sulci (brain fissures or depressions). The structure of the brain is made up of Neurons. Neurons are made up of the following regions: Dendrite, soma, Nucleus, Axon, Myelin sheath, Node of Ranvier, Schwann cell, Axon Terminal. Consisting of similar materials as most cells (DNA...etc).
What speeds up the passage of electrical messages by acting as a insulator of the neuronal signal?
The Myelin Sheath that surrounds the axon insulates the axon but also increases the speed of the message traveling down it.
What region of the cell secretes neurotransmitters?
an axon terminal
What does the sheath do in a nerve cell?
The myelin insulating sheath speeds up signal propagation down the axon. It also acts like the covering on any electric cord. It only covers the axon and since it is made of fatty materials, it appears white. The cell and dendrites appear gray.
What does not belong axon terminal synaptic knob bouton axon collateral?
axon collateral
The axon is connected to the soma by the?
axon hillock
What is a axon hillock?
An axon hillock is a special cell body that connects an axon to a neuron. It is the last place where propagated membrane potentials are transmitted to the axon.
What are the 3 main structures of a neuron?
Dendrites, Axon, Axon Terminal, and Cell Body
