Because this is tissue from the brain (CNS), it is an oligodendrocyte which wraps around axons of neurons in the CNS to form a fatty myelin sheath. If it were PNS axons in say spinal or cranial nerves, the answer would be be Schwann cells.
Myelin sheath. This is the insulating sheath which covers most of the axon, between the Axon Hillock and Collateral branches of the Neuron.
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
Myelin acts as an insulating layer around the axon, allowing for faster transmission of electrical impulses. It helps to speed up nerve conduction and prevents signal loss by reducing interference between neighboring nerve fibers.
Between myelin segments surrounding the axon The axon of a neuron is the single long fibre which caries impulses away from the cell body. It is surrounded by a fatty layer, the myelin sheath, produced by Schwann cells arranged along the length of the axon. The gaps between the myelin sheath cells are called nodes of Ranvier. See http://en.wikipedia.org/wiki/Axon for more information and a diagram. easy answer between the myelin segments surrounding the axon b. between myelin segments surrounding the axon
axon hillock = where cell body meets the axon axon bulb = end of the axon...lies very close to the dendrites of another neuron so impulses can pass over the synapse. AP Biology student *
Myelin sheath. This is the insulating sheath which covers most of the axon, between the Axon Hillock and Collateral branches of the Neuron.
The myelin sheath acts as a covering on the axon of a neuron just as the covering on the cord you plug into an electrical socket. If it is damaged, the current can be "short circuited" and the neuron and the axon will not function. This sheath allows impulses to travel rapidly. MS is a disease where these sheaths are damaged.
receptive region?
Medullary (myelin)- sheath is the covering of nerve fibres. It insulates the nerve fibre (axon) and prevents leakage of ions.
Myelin Sheath
axon
the axon
synaptic knobs (or axon terminals<--more commonly used name)
Myelin acts as an insulating layer around the axon, allowing for faster transmission of electrical impulses. It helps to speed up nerve conduction and prevents signal loss by reducing interference between neighboring nerve fibers.
Between myelin segments surrounding the axon The axon of a neuron is the single long fibre which caries impulses away from the cell body. It is surrounded by a fatty layer, the myelin sheath, produced by Schwann cells arranged along the length of the axon. The gaps between the myelin sheath cells are called nodes of Ranvier. See http://en.wikipedia.org/wiki/Axon for more information and a diagram. easy answer between the myelin segments surrounding the axon b. between myelin segments surrounding the axon
The neurotransmitter released at the axon bulb is acetylcholine.
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.