Past Questions - Sense Organs Flashcards
What is Bruch’s membrane?
Lamina vitrea
What are neurons in the retina?
Multipolar
Which structure is transparent?
Cornea
Which of the following is the receptor for color?
Cones
What is responsible for adjusting the lens?
Ciliary muscle
What is the region called where the optic nerve exits the eye?
Optic disc
Which of the following is a type of neuron?
Ganglion cells
What is the space anterior to the iris?
Anterior chamber
Which layer forms the majority of the cornea?
Descemet’s membrane
What is the region where the optic nerve leaves the eyeball?
Optic disc
What are the receptors for vision?
Both a and b
a. Rods
b. Cones
Where is the ciliary muscle located?
Ciliary body
Where is the ciliary muscle located?
Ciliary body
What are the openings within the sclera which allow nerve fibers to exit?
Lamina cribrosa
Which of the following is NOT part of the retina?
Ciliary body
What structure adjusts the shape of the lens?
Ciliary muscle
What is the inner layer of the choroid?
Lamina vitrea
Where does aqueous humor from anterior chamber collect into?
Canal of Schlemm
Which layer of the cornea is acellular?
Descemet’s membrane
Which structure is avascular?
Cornea
During the American Revolution, in the battle of Bunker Hill, an officer instructed his troops: “Don’t fire until you see the whites of their eyes”. What anatomical structure was he referring to?
Sclera
Where is the region associated with maximum visual acuity?
Fovea centralis
What is the suspensory ligament of the lens?
Zonlular fibers
Which layer of the cornea is acellular?
Bowman’s membrane
How many layers of tissue compose the eyeball?
3
What type of glands are the glands of Moll?
Apocrine sweat gland
Which structure is part the uvea?
Ciliary body
What is the space anterior to the lens?
Both a and b
a. Anterior chamber
b. Posterior chamber
What is the vascular pigmented structure?
Choroid
What type of epithelium is on the surface of the cornea?
Stratified squamous
What structure was Crystal Gayle referring to when she sang, “Don’t it make my brown eyes blue”?
Iris
What makes up the bulk of the cornea?
Collagen fibers
What is the middle layer of the eyeball?
Uvea
What is the anterior pigmented portion of the retina called?
Ora serrata
Which one of the following is not found in the retina?
Henle’s layer
Which structure is part the uvea?
Choroid
What is the space posterior to the lens?
Vitreal cavity
Where is the blind spot?
Optic disc
How many layers does the retina have?
10
Which of the following is NOT a layer of the cornea?
Lamina vitrea
Where on the retina are there no photoreceptors?
Optic disc
What makes up the bulk of the sclera?
Collagen fibers
Which is NOT part of the retina?
Uvea
What is the most anterior portion of the uvea?
Iris
Which one of the following is not found in the retina?
Huxley’s layer
Which structure is part the uvea?
Iris
What is the space posterior to the iris?
Posterior chamber
What is within the membranous labyrinth?
Endolymph
What is within the bony labyrinth?
Perilymph
Which contains endolymph?
Cochlear duct
Which contains perilymph?
Both a and b
a. Scala vestibuli
b. Scala tympani
Where are the sensory receptors for hearing?
Organ of Corti
Where are the sensory receptors for movement?
Semicircular canals
Where are the sensory receptors for position?
Both a and b
a. Saccule
b. Utricle
What structure is shaped like a snail shell?
Cochlea
Where is the organ of Corti?
Cochlea
What sensation does the crista ampullaris recognize?
Movement
Which cell type is the receptor cell within the organ of Corti?
Hair cells
