Beginnings Of Perception

Question 1

Humans are sensitive to what wavelengths of electromagnetic scale?

Answer 1

400 to 700 nanometers

Question 2

Presbyopia

Answer 2

Hardening of lens and weakening of ciliary muscles that occurs due to aging and leads to loss of accommodation

Question 3

Accommodation

Answer 3

Curving and thickening of lends to allow objects of varying distances to be focused on the retina

Question 4

Myopia

Answer 4

Nearsighted; trouble seeing far objects

Question 5

Hyperopia

Answer 5

Farsighted; trouble focusing on close objects

Question 6

Isomerization

Answer 6

Changing of shape of retinal when it absorbs photons of light

Question 7

Rod-cone break

Answer 7

Time that usually occurs ~7 after being in the dark when cones and rods trade off sensitivity

Question 8

Perkinje shift

Answer 8

Time during dark adaptation where darker blues and greens become more visible

Question 9

Why are rods more sensitive to light?

Answer 9

Higher neural convergence

Question 10

Key components of a neuron

Answer 10

1) cell body
2) dendrites
3) receptor sites
4) axon/nerve fiber
5) synaptic vesicles