Visual Receptors Flashcards
0
Q
isomerize
A
when photopigment molecules react to light and later release of NT
1
Q
Visual Receptors
A
Rods and Cones
contain photopigment molecules that react to light (“isomerize”)
2
Q
Receptors show…
A
…SPONTANEOUS firing and GRADED potentials
3
Q
graded potentials
A
more light, more change in release of NT
4
Q
Rods
A
larger in periphery
~ 120 million per eye
5
Q
Cones
A
smaller
dispersed throughout retina
~6 million per eye
6
Q
Fovea
A
small central area of high concentration of CONES ONLY
for high detail resolution
