Sheep eye dissection Flashcards
What is the primary purpose of sheep eye dissection?
To study the anatomy and function of the eye.
True or False: The sclera is the outermost layer of the eye.
True
Fill in the blank: The _______ is the transparent front part of the eye that covers the iris and pupil.
cornea
What part of the eye contains the photoreceptor cells?
retina
What is the function of the lens?
To focus light onto the retina.
What is the function of the vitreous humor?
To maintain the shape of the eye and provide a pathway for light.
True or False: The iris controls the amount of light entering the eye.
True
Fill in the blank: The _______ is the colored part of the eye.
iris
What is the role of the optic nerve?
To transmit visual information from the retina to the brain.
What is the main purpose of the choroid layer?
To provide blood supply to the retina.
What structure in the eye helps to refract light?
cornea and lens
True or False: The aqueous humor is found in the anterior chamber of the eye.
True
Fill in the blank: The _______ is a gel-like substance that fills the space between the lens and the retina.
vitreous humor
What is the purpose of the pupil?
To regulate the amount of light entering the eye.
Which layer of the eye is responsible for its shape?
sclera
What is the function of the ciliary body?
To control the shape of the lens for focusing.
True or False: The retina is responsible for color vision.
True
Fill in the blank: The _______ is the area of the retina where vision is sharpest.
fovea
What are the two types of photoreceptors in the retina?
rods and cones
Multiple Choice: Which part of the eye is responsible for night vision?
rods
What is the role of the lens during accommodation?
To change shape to focus on near or far objects.
True or False: The sheep eye has a tapetum lucidum.
True
Fill in the blank: The _______ is a reflective layer behind the retina that enhances night vision.
tapetum lucidum
What is the significance of the optic disc?
It is the point where the optic nerve exits the eye, creating a blind spot.
Multiple Choice: Which structure helps to maintain intraocular pressure?
aqueous humor
What happens to the pupil in bright light?
It constricts.
True or False: The lens is a rigid structure that cannot change shape.
False
Fill in the blank: The _______ connects the ciliary body to the lens.
zonules
What is the primary component of the sclera?
collagen fibers
Multiple Choice: Which part of the eye is most sensitive to light?
retina
What is the function of the eyelids?
To protect the eye and keep it moist.
True or False: The cornea has no blood supply.
True
