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What are the most rapid action potentials conducted on?
thick myelinated axons
Which structure if the neuron transmits an impulse through the myelin sheath?
Neural impulses (action potentials) are transmitted through axons which are covered in a myelin sheath for insulation.
Do axons carry action potentials away from the cell body?
Yes, axons carry action potentials away from the cell body towards other neurons or target cells. This is how information is transmitted along the length of the neuron.
The most rapid action potentials are conducted on?
The most rapid action potentials are conducted on myelinated axons, specifically those with a larger diameter. Myelination and a larger diameter help to increase the speed of conduction by decreasing capacitance and resistance.
Which type of axon will velocity of action potential conduction be the fastest?
Myelinated axons with a larger diameter will conduct action potentials the fastest due to saltatory conduction, where the action potential jumps from one node of Ranvier to the next, skipping the myelin-covered regions. Smaller-diameter and unmyelinated axons will conduct action potentials more slowly.
What nerve is composed of axons of the ganglion cells and transmits action potentials the thalamus of the brain?
Optic nerve
The cells of the retina in which action potentials are generated are the?
The cells of the retina that generate action potentials are the ganglion cells. They receive input from the bipolar cells and amacrine cells, and their axons form the optic nerve that transmits visual information to the brain.
What is a tiny branching thread-like structure found in neurons?
There are two possible answers - axons or dendrites. Axons carry action potentials away from the neuron, while dendrites receive action potentials.
Axons that are much slower than axons coated with 19 down?
Axons that are much slower than those coated with myelin may be unmyelinated or have thinner myelin sheaths. Myelination helps to increase the speed of action potential conduction by allowing for saltatory conduction. Without myelin, the propagation of action potentials along the axon is slower due to the need for continuous regeneration of action potentials along the length of the axon.
What type of axon propagates an action potential faster?
Myelinated axons propagate action potentials faster compared to unmyelinated axons. This is because the myelin sheath insulates the axon and helps the action potential "jump" from one node of Ranvier to the next, a process called saltatory conduction.
Dendrites conduct both graded and action potential?
Dendrites primarily conduct graded potentials, which are local changes in membrane potential. These graded potentials can accumulate and trigger an action potential in the axon hillock if they reach a certain threshold. Action potentials are then conducted along the axon.
Where does the axons carry messages toward?
Axons carry messages (action potentials) away from the cell body to other neurons, muscles, or glands. They transmit information from one neuron to another, enabling communication within the nervous system.
