Eye Anatomy Flashcards
What is the function of the cornea?
To focus light into the eye.
True or False: The iris controls the amount of light entering the eye.
True
What structure is responsible for changing the shape of the lens to adjust focus?
Ciliary muscles
What is the role of the retina in the eye?
To convert light into electrical signals for the brain.
Which part of the eye contains the highest concentration of cones for color vision?
Fovea
What is the function of the optic nerve?
To transmit visual information from the retina to the brain.
What is the primary visual cortex responsible for?
Processing visual information received from the eyes.
Fill in the blank: Light enters the eye through the ________.
Pupil
What is the purpose of the vitreous humor in the eye?
To maintain the shape of the eyeball.
What is the function of the optic chiasm?
To combine and relay visual information from both eyes to the brain.
True or False: The brain interprets the electrical signals from the retina to create visual images.
True
Which part of the brain is responsible for processing visual information received from the eyes?
Occipital lobe
What is the purpose of the aqueous humor in the eye?
To provide nutrients and maintain pressure in the eye.
What is the function of the optic tract in the brain?
To relay visual information from the optic chiasm to the brain.
Which part of the eye contains the highest concentration of rods for low-light vision?
Peripheral retina
Fill in the blank: The lens of the eye refracts light to focus an image on the ________.
Retina
What is the purpose of the fovea in the eye?
To provide sharp central vision.
True or False: The optic nerve carries visual information to the brain for processing.
True
What is the function of the lateral geniculate nucleus in the brain?
To relay visual information from the optic tract to the visual cortex.
Which part of the eye contains the highest density of ganglion cells for transmitting visual information to the brain?
Optic disc
True or False: The visual cortex is located in the frontal lobe of the brain.
False
What is the role of the superior colliculus in the brain?
To help orient the eyes towards visual stimuli.
Fill in the blank: The optic chiasm is located at the base of the ________.
Brain
What is the function of the suprachiasmatic nucleus in the brain?
To regulate the circadian rhythm based on light input.
