Advertisements
Advertisements
Question
Which of the following statements is wrong regarding conduction of nerve impulse?
Options
In a resting neuron, the axonal membrane is more permeable to K+ ions and nearly impermeable to Na+ ions.
Fluid outside the axon has a high concentration of Na+ ions and low concentration of K+, in a resting neuron.
Ionic gradient s are maintained by Na+ K+ pumps across the resting membrane, which transport 3Na ions outwards for 2K+ into the cell.
A neuron is polarized only when the outer surface of the axonal membrane possess a negative a charge and its inner surface is positively charged.
Advertisements
Solution
A neuron is polarized only when the outer surface of the axonal membrane possess a negative a charge and its inner surface is positively charged.
RELATED QUESTIONS
Receptor, Spinal cord, Effector, Motor neuron, Sensory neuron.
Name the following:
Structural and metabolic unit of nervous tissue.
Explain the following term :
Association neuron
Draw a labeled diagram of a myelinated neuron.
Write a short note.
Autonomic Nervous System
Axons ____________.
What is the connective tissue covering around the nerve fascicle called?
______ is the gap between the axon of one terminal neuron and the dendrites of next neuron.
Write one word for the following:
A bundle of axons enclosed in a tubular sheath.
Which of the following structures is absent in nerve cells?
