Charecteristic of smooth muscle cells in intestineMarch 2005
Correct Answer: It contracts when stretched in the absence of any extrinsic innervation
Description: Ans. C: It contracts when stretched in the absence of any extrinsic innervationUnitary smooth muscle (as present in a walls of a hollow viscus) is characterized by the instability of its membrane potential and by the fact that it shows continuous, irregular contractions that are independent of its nerve supply. This maintained state of contraction is called tonus/ toneIt does have actin and myosin-II but they are not arranged in regular arrays to give striations as in skeletal and cardiac muscle.They require calcium for initiation of contraction like skeletal and cardiac muscle.
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