vision and chemoreception

The thalamus filters incoming information for all senses except:

a. touch

b. taste

c. sight

d. smell

d. smell

What are the energy packets carried in light waves called?

a. protons

b. photons

c. proteins

d. photos

b. photons

The pupil is surrounded by the iris and is actually just an opening

true or false

true

The lens is able to adjust its shape, bending and focusing light in a process called

a. assimilation

b. affiliation

c. accomodation

d. accordance

c. accommodation

In the retina, axons of the ____ cells form the optic nerve

a. ganglion

b. intermediate

c. photoreceptor

a. ganglion

Which photoreceptors process dim light, only process grays, are the most numerous?

a. cones

b. rods

b. rods

The area directly at the back of the retina behind the lens is the ____

a. cataract

b. scilia

c. optic disc

d. fovea

d. fovea

Myopia causes nearsightedness, which means a person cannot focus on things ____

a. nearby

b. far away

b. far away

The process of photoreceptors turning light waves into neural signals is called ____

a. transmission

b. transduction

c. transaction

d. trans atlantic cable

b. transduction

Light landing within a receptive field causes ____ when falling in the center and ____ in the surrounding areas

a. inhibition; excitation

b. inhibition; inhibition

c. excitation; inhibition

d. excitation; excitation

c. excitation; inhibition

Ganglion cells start forming in the optic nerve with their axons before it is taken over by intermediate cells

true or false

false

Eyes send all their optic nerves to the contralateral (opposite) side of the brain

true or false

false

Retinotropic maps are used to recreate the retinal nerve patterns on the ___ and the ____

a. ACh; pyriform cortex

b. ACh; primary visual cortex

c. LGN; pyriform cortex

d. LGN; primary visual cortex

d. LGN; primary visual cortex

The primary visual cortex is on the ____ lobe

a. frontal

b. parietal

c. occipital

d. temporal

c. occipital

The primary olfactory cortex includes all these areas except:

a. amygdala

b. entorhinal cortex

c. thalamus

d. pyriform cortex

c. thalamus