48 OUTLINES OF ANATOMY. 



2. Anterior hemisphere, 880-1. (860-1) 



Crystalline lens. Ora serrata. Iris. Lens capsule. 

 Suspensory ligament. Ciliary muscle. 



The coats of the eye should now be systematically demonstrated on a fresh eye. 



The outer, fibrous coat of the eye, 881. (861) 



Lamina cribrosa, limbus. Lamina cribrosa, 898-9. (878-9) 



With a sharp knife carefully cut through the sclerotic at the equator of the eyeball, to the choroid ; with 

 a pair of sharp scissors continue the incision around the eyeball. Make three or four incisions back- 

 ward nearly to the optic nerve and carefully reflect the sclerotic from the choroid. Divide the optic 

 nerve close to the inner side of the sclerotic. In the same manner carry the dissection forward to the 

 margin of the cornea, carefully detaching the ciliary muscle from the inner surface of the sclerotic. 



The cornea, 88 1-2. (861-2; 



Middle or vascular coat of the eye, uveal tract, 882-3-4. (862-3-4) 

 The choroid : 



Membrana suprachoroidea. 

 Membrane of Bruch. 

 Choroido-capillaris, Fig. 478. 

 Ciliary body : 

 Corona ciliaris. 

 Orbiculus ciliaris. 



With a small brush wash away the pigment on one of the anterior hemispheres, exposing 

 the ciliary processes. 



Ciliary muscle. 



The arrangement of the fibres of the ciliary muscle can be studied to advantage only with properly 

 prepared and mounted sections and a microscope. 



The iris, sphincter iridis, 883-4. (862-3-4) 







Take an eyeball from which the sclerotic has been removed and placing it in water, with a fine brush 

 carefully wash away the pigment of the choroid and expose the vessels and nerves on the surface. 



Ciliary nerves of the eyeball, 886-7 ; F'g- 479- (867) 



The ciliary system of blood-vessels, 888-9 > F'g s - 479 an d 478. (868-9) 



(1) Short posterior ciliary arteries. 



(2) Long posterior ciliary arteries. 



(3) Anterior ciliary arteries. 

 Veins: Vena vorticosae. 



Anterior ciliary veins. 



With the eyeball under water carefully remove the choroid, ciliary processes, and iris and expose the 

 outer surface of the retina. 



The innermost or nervous coat, 884-5. (864) 

 Pars ciliaris retinae. 

 The retina proper. 



Arteria centralis retinae, 887-8. (867-8) 

 Vena centralis retinae, Fig. 478. 

 Aqueous humor, 886. (867) 



Anterior. Posterior aqueous chamber. 

 Vitreous humor, 886. (866-7) 



Suspensory ligament of the lens, canal of Petit, 886. (866) 

 The lens, 885-6. (864-5) 



Equator. Pole. Stellate figures. 

 Nucleus. Cortex. 



Lymphatic system of the eyeball, 889-90. (869-70) 

 Anteriorly : 



In the cornea. 

 In the iris. 

 Posteriorly. 



