Assertion: Nerve impulse can never be transmitted from...

Name: Problem 140, Chapter 21: Objective Biology for NEET
Uploaded: 2021-12-01T12:33:35-08:00
Duration: 1 min 34 s
Channel: Parvati Devi
Description: Assertion: Nerve impulse can never be transmitted from dendrite or cell body of one neuron to the axon of the next neuron, across a synapse. Reason: This happens because of the synaptic delay at each synapse.

Assertion: Nerve impulse can never be transmitted from dendrite or cell body of one neuron to the axon of the next neuron, across a synapse. Reason: This happens because of the synaptic delay at each synapse.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Nerve Impulse Transmission

This concept involves the propagation of electrical signals, known as action potentials, along a neuron from the dendrites through the cell body to the axon. At the synapse, the impulse is transformed into a chemical signal and then converted back into an electrical signal in the next neuron, highlighting the mode of inter-neuronal communication.

Synaptic Delay

Synaptic delay refers to the slight time lag between the arrival of an action potential at the presynaptic terminal and the initiation of a response in the postsynaptic neuron. This delay is attributed to the processes of neurotransmitter release, diffusion across the synaptic cleft, and receptor activation.

Neuronal Polarity

Neurons have a distinct structural organization, characterized by dendrites, a cell body, and an axon. This polarity ensures that nerve impulses flow in one direction—from the dendrites and cell body to the axon—facilitating organized and effective signal transmission.

Synapse

A synapse is the junction where two neurons communicate. It is typically characterized by the release of neurotransmitters from the presynaptic neuron and the reception of these chemical signals by receptors on the postsynaptic neuron, ensuring signal transfer between neurons.

Please give Ace some feedback