2. The Eyeball Flashcards
What are the names of the layers of the eyeball?
fibrous tunic, uveal tract & retina
What are the parts of the fibrous tunic of the eyeball?
cornea and sclera
What are the parts of the uveal tract of the eyeball?
iris, ciliary body, choroid & pupil
What muscles are present in the iris?
sphincter pupillae and dilator pupillae
What is the innervations of the sphincter pupillae?
oculomotor nerve, parasympathetic pathway
What is the innevation of the ciliaris muscle?
oculomotor nerve, parasympathetic pathway
What are the receptor neurons of the second cranial nerve?
rod and cone photoreceptor cells
What is the function of the rod cell?
provide vision in dim light conditions
What is the function of the cone cell?
provide vision in bright light conditions and mediate color vision
What is the most numerous photoreceptor cell?
rod cell
What forms the optic nerve?
axons of ganglion cells
What is the location of the anterior chamber of the eyeball?
between the cornea and iris
What is the location of the posterior chamber of the eyeball?
between the iris and lens
What is contained in the anterior chamber of the eyeball?
aqueous humor
What is the name given to the chamber behind the lens?
vitreous humor
