BASICS Flashcards
In the Cornea how is transparency maintained?
Histologically by regular arrangement of collagen in the stroma
No blood vessels
Endothelium cell layer has a pump that actively keeps out Aq Hum
What is the fx of the choroid?
Supplies Blood to outer layers of retina
Where does the outer layers of the retina get its blood from?
The choroid and it’s fenestrated vessels by diffusion
Where do the inner layers of the retina get there blood supply from?
The central retinal arteries branches
How does the fovea centralis have maximum visual acuity?
It is packed with cones
What are lens opacifications called?
Cataracts
What divides the Anterior and posterior chambers of the eye?
The iris
Where is aq humor produced?
By the ciliary bodies in the space behind the iris and infront of the lens
Wher is aq hum filtered?
IN the trabecular meshwork
Where is the lacrimal gland situated?
IN the orbit laterally
What stimulates secretion of tears into the conjunctival sacs?
Parasympathetic from CrNVII
Name the 5 layers of the SCALP?
Skin SubCutaneous tissue epicranial Aponeurosis Loose areolar tissue Pericranium
Where is the Blood Brain Barrier absent?
parts of the:
The hypothalamus
Posterior Pituatry
