PHYSIOLOGY
NEUROTRANSMISSION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
dendrites; axons
|
|
synapses; axons
|
|
synapses; dendrites
|
|
axons; dendrites
|
Detailed explanation-1: -In a neuron or a nerve cell, the impulse travels through the axon towards the axonite. The dendrite of the receiving neuron picks up this impulse which is again transferred to another neuron or a cell. Hence, axon transfers the signal/impulse and the dendrite receives the impulse from other neurons.
Detailed explanation-2: -An axon is a long single fiber that transmits messages from the cell body to the dendrites of other neurons or to other body tissues, such as muscles. A protective covering called the myelin sheath, covers most neurons. Myelin insulates the axon and helps nerve signals travel faster and farther.
Detailed explanation-3: -Dendrite – The receiving part of the neuron. Dendrites receive synaptic inputs from axons, with the sum total of dendritic inputs determining whether the neuron will fire an action potential.
Detailed explanation-4: -The dendrites serve to receive incoming electrical signals from other neurons. Most neurons have a single axon to transmit outgoing signals. Axons vary in length from micrometers to over a meter. Portions of the axon are insulated by supporting cells with myelin, a phospolipid membrane.