Action potential is transmitted in myofibrils via:
Correct Answer: T- Tubules
Description: Ans: B (T- Tubules) Ref: Pal GK. Muscle, In: Textbook of Medical Physiology, Ahuja Publishing House 2007: 20:177Explanation:T-Tubules are tubular extensions of sarcolemma. that penetrate to the center at the junctions of A and I bands. It is involved in conduction of action potential from NMJ to the triad formed by terminal cisternae and L tubules (part of sarcotubular system).Terminal cisternae - dilated region at both ends of elongated tubules (L-tubules), a part of Sarcoplasmic reticulum - involved in calcium release.* Sarcomere - structural functional unit of myofibril; portion of myofibril between two successive Z lines.
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