Topic 6 Receptors Pancinian Corpuscule

Question 1

Where are often pancinian corpuscule often situated?

Answer 1

Often situated deep in skin at finger and feet.

Question 2

How is resting potential maintenance in Pancinian Corpuscle?

Answer 2

The channel to narrow for Na+ to diffuse in so resting potential is maintained.

Question 3

How is voltage gated Na+ open in Pancinian Corpuscle?

Answer 3

First stimulated by tap on the arm, lamallae deformed and press on sensory nerve ending
This causes sensory neurone cell membrane to stretch
Na+ channel open make cell membrane more permeable to Na+

Question 4

After Voltage Gated Na+ opened in Pancinian Corpuscle How is action potential caused?

Answer 4

Na+ diffuse into cell creating generator potential
If generator potential reaches threshold action potential triggered.