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Which of the following is specialised for conducting information via electrical impulses from one part of the body to another?
Neuron
Spinal cord
Alveoli
Glomerulus
Neuron
A neuron (nerve cell) is the structural and functional unit of the nervous system. It is specifically specialized to receive, process, and transmit information throughout the body using electrical signals known as nerve impulses.
A neuron (nerve cell) is the structural and functional unit of the nervous system. It is specifically specialized to receive, process, and transmit information throughout the body using electrical signals known as nerve impulses.
A neuron is like an electrical wire in a house; just as the wire carries current from the main switch to a bulb to turn it on, the neuron carries an electrical impulse from a sense organ to the brain to trigger a response.
VmтАЛ=VinтАЛтИТVoutтАЛ тАФ Potential difference across the cell membrane
I=dtdVтАЛ тАФ Change in membrane potential over time
Neurons operate by generating and conducting electrical potentials. When a stimulus is received, the resting membrane potential changes due to the influx of ions (Na+, K+) across the cell membrane, creating an action potential that travels down the axon to the axon terminal, where it triggers the release of neurotransmitters to the next cell.
Neurons are the longest cells in the human body.
The electrical signal travels in one direction: from the dendrites to the cell body and down the axon.
Communication between two neurons occurs at a junction called a synapse, often involving chemical neurotransmitters.
Extremely rapid transmission of information (up to 120 m/s).
Allows for complex coordination and integration of sensory data.
Neurons have very limited capacity for regeneration if damaged.
Highly dependent on constant oxygen and glucose supply.
Sensory perception (touch, pain, light, sound).
Voluntary and involuntary muscle movement control.
Spinal cord is a bundle of nerves, not a single cell.
Alveoli are tiny air sacs in lungs for gas exchange.
Glomerulus is a cluster of capillaries in the kidney for filtration.
A is correct тАФ The neuron is the specialized cell responsible for conducting information via electrical impulses.
In competitive exams, always distinguish between the 'unit' (neuron) and the 'organ' (spinal cord/brain) when asked about conducting impulses.