The rod receptor potential differs from other surface receptors in that it shows ______?
Correct Answer: Hyperpolarization
Description: The rod receptor potential differs from the outer surface receptors in that it shows Hyperpolarization. In most sensory receptors: Arrival of stimulus - Ion channels are opened up allowing current to flow - depolarisation of the receptor. In photoreceptors: When the light strikes the outer segment, a cascade of reactions are initiated, that close some of the Na+ channels in the outer segment and results in hyperpolarisation. Ref: Guyton and Hall 13th edition Pgno: 650-651
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