Vision

The tough, fibrous outer layer of the eye is called the __________.

sclera

The __________ is the transparent front part of the eye that helps focus light.

cornea

The primary function of the __________ is to bring light into focus on the retina.

lens

Too much pressure in the eye can lead to __________.

glaucoma

The __________ is where light focuses on the retina, creating a dimple at the back of the eye.

fovea

Rods are responsible for __________ vision and are very sensitive to low light levels.

scotopic

When illumination increases, the photoreceptors respond by __________, decreasing glutamate release.

hyperpolarizing

The __________ __________ is the pathway that carries signals from the retina to the brain's visual areas.

primary visual pathway

The __________ controls the amount of light entering the eye by adjusting the pupil size.

iris

Axons from the ganglion cells of the __________ side cross over to the other side of the brain.

nasal

The inner segment of a cone photoreceptor contains apparatus for making __________.

proteins

Changes in brightness detected by the retinal ganglion cells depend on the contrast in their __________ __________.

receptive fields

Phototransduction occurs in the __________ segment of photoreceptors where light interacts with photopigments.

outer

The __________ is crucial for object recognition and is located in the temporal lobe.

intra-temporal area

As you move from the central retina to the peripheral retina, the receptive field size tends to __________.

increase

In the visual system, cortical areas specialized for __________ help to analyze spatial and motion information.

dorsal stream

The parvocellular cells are primarily responsible for detecting __________ and fine details.

color