Orthodromic conduction is –
Correct Answer: An axon can conduct impulse in one direction only
Description: Ans. is 'a' i.e., An axon can conduct impulse in one direction only o Experimentally, an axon can conduct impulse in either directionQ.o When an action potential is initiated in the middle of the axon, the impulse shall travel in both direction, i.e., one along the axon towards its terminal knobs and one in opposite direction, i.e., along the axon towards the cell body (soma) & dendrites.o However, in the intact body, i.e., in the natural situation, the impulses are conducted in the one direction onlyQ, i.e., from synaptic junction or receptors along axons to their termination.o Such conduction is called orthodromic conductionQ.o Conduction in opposite direction is called antidromic conduction, i.e., opposite to physiological direction.o However, antidromic conduction is very rare and may be seen only in muscle tissue.o In nerve fibers, the propagation of action potential is unidirectional (orthodromic) because transmission across neuromuscular junction and synpses is unidirectionalQ.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now