Objective 1 Flashcards
The cells of the inner layer of the ciliary epithelium generate aqueous humour?
True
The front of the uvea tract is the iris?
True
The sphincter papillae of the iris dilates the pupil?
False (the sphincter muscle constricts the pupil)
The ciliary body is partly responsible for accommodation?
True
The space between the cornea and the iris is referred to as the posterior chamber?
False (This space is the anterior chamber)
The ciliary process is the thin vascular middle layer of the eye situated between the layers of the sclera and the retina?
False (the choroid is the middle layer of the eye)
Vessels of the uvea penetrate the ciliary body and the iris to provide the metabolic needs
True
The zonule of Zinn is a ring of fibrous strands which connect the ciliary body with the crystalline lens?
True
Contraction of the ciliary muscle makes the crystalline lens more convex, improving near vision. When the ciliary muscle flattens the lens, distance objects become sharper.
True
The color of an individual’s iris depends upon the density and arrangement of tissue and melanin pigment cells.
True