In conduction system of hea the maximum velocity of conduction is seen in?
Correct Answer: Purkinje fibers
Description: Purkinje fibers are characterized by action potentials with a low resting membrane potential (-- 90 mV), a rapid maximum upstroke velocity (500 to 700 V/s), and, therefore, a rapid conduction velocity. Purkinje's fibres have many gap junctions which allows the rapid flow of current and hence the conduction velocity is maximum in Purkinje's fibres. This rapid conduction allows simultaneous contraction of both the ventricles. Ref: Moss and Adams' Hea Disease in Infants, Children, and Adolescents ... By Ahur J. Moss, Hugh D. Allen, M.D., 2007, Page 24, Table 1.2; Guyton's physiology, 22nd edition, Page 105.
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