Week 6.1 The Eye Flashcards
This fills the posterior chamber
Aqueous humor
This fills the anterior chamber
Aqueous humor
The white of the eye
Sclera
The transparent region that is continuous with sclera
Cornea
Inflammation of this is called pink eye
Conjunctiva
Name for increase in intraocular pressure
Glaucoma
The type of fibers that form the sclera
Type I collagen
The general name for visual pigments found in cones is called
Iodopsin
Controls amount of light coming into the eye
Iris
Absorbs extraneous light
Pigmented layer of retina
Provides sites of attachment for the muscle that moves the eye
Sclera
Provides physical support for the shape of the eye
Sclera
Bends incoming light
Lens
Converts light to nerve impulses
Neural layer of retina
Secretes aqueous humor
Ciliary body
Vascularized tissue that supplies nutrition to the retina
Choroid
Functions in change in the shape of lens
Ciliary body
The parts of the vascular layer of the eye are
Choroid, ciliary body, and iris
How many rod cells are in the human retina?
92M
Vision is the sharpest in the fovea region of the retina. Why?
The cone cells are abundant and tightly packed.
The cell bodies of the ganglion cells are peripheral to the fovea
Very few capillaries are present in the fovea
The “blind spot” is also known as the
Optic disk/disc
Which of these is true of lacrimal glands?
Lacrimal glands are serous tubuloacinar glands.
Lacrimal glands are different than tarsal glands.
Tears from the lacrimal glands pass into the nasal passages by way of the nasolacrimal duct.
Which one of these is true?
Rods have rhodopsin as the visual pigment.
Cones have three types of iodopsin visual pigments
Visual pigments are proteins that change their shape due to a reaction with photons.
T/F
When the ciliary muscles are relaxed, the lens is flatter, and distant objects are in focus
True
