Biology 119 - COW EYEBALL DISSECTION IMAGES

Biology 119

IMAGES FROM EYE DISSECTIONS

Photos of Eye Model Biology 118 Home Page Biology 119 Home Page

Click on each image to see the larger version. The cornea, lens & vitrous humor are completely transparent in living tissue, but the chemical preservatives discolor these structures.

Sectioned Eye
The black section in the upper left is an inverted iris & ciliary body. To its lower left are pieces of the lens pulled apart to see its fibrous looking epithelial cells. The right section is the back of the eye showing the choroid & the reflective tapetum lucidum. The retina has been pulled aside is visible as the beige material in the left of that section. The semi-transparent material at the bottom is the vitreous humor.

Sectioned Eye
The left upper piece is the semi-transparent cornea which was cut away from the lower left darkly pigmented ciliary body & iris. The pupil is the hole in the center of the iris. The ciliary body has the thicker, ridged appearance. The section to the right shows the choroid with its tapetum lucidum.

Sectioned Eye
The left section shows the vitreous humor still attached to the lens & ciliary body. The right section shows retina in the back of the eye. Alani did this dissection.

Posterior Section of Eye with Intact Retina
This section shows a nearly intact retina. The optic disc is easily visible (follow the folds of the retina to a central point. The macular lutea region is visible above the optic disc as thinner area of the retina & behind it is a small gap in the reflective tapetum lucidum.

Lens - capsule peeled back
Note the thin, fibrous looking epithelial cells that make up the lens. Gretchen is holding the lens.

Lens - cut in half
Note the long, slender epithelial cells that grow in concentric rings to form the lens.

Optic Nerve & Posterior of Eye
The optic nerve is visible in the center of the section in the upper right. The lens has been removed from the eye & is in the upper left of the view. The vitreous body is the gelatinous, semi-transparent material in the lower right.

Optic Nerve
The fatty pad around the eye is pulled back, revealing parts of the skeletal muscles (in dark brown) that control the movement of the eye. The forceps are holding the optic nerve.

Sectioned Eye The black section in the upper left is an inverted iris & ciliary body. To its lower left are pieces of the lens pulled apart to see its fibrous looking epithelial cells. The right section is the back of the eye showing the choroid & the reflective tapetum lucidum. The retina has been pulled aside is visible as the beige material in the left of that section. The semi-transparent material at the bottom is the vitreous humor.	Sectioned Eye The left upper piece is the semi-transparent cornea which was cut away from the lower left darkly pigmented ciliary body & iris. The pupil is the hole in the center of the iris. The ciliary body has the thicker, ridged appearance. The section to the right shows the choroid with its tapetum lucidum.
Sectioned Eye The left section shows the vitreous humor still attached to the lens & ciliary body. The right section shows retina in the back of the eye. Alani did this dissection.	Posterior Section of Eye with Intact Retina This section shows a nearly intact retina. The optic disc is easily visible (follow the folds of the retina to a central point. The macular lutea region is visible above the optic disc as thinner area of the retina & behind it is a small gap in the reflective tapetum lucidum.
Lens - capsule peeled back Note the thin, fibrous looking epithelial cells that make up the lens. Gretchen is holding the lens.	Lens - cut in half Note the long, slender epithelial cells that grow in concentric rings to form the lens.
Optic Nerve & Posterior of Eye The optic nerve is visible in the center of the section in the upper right. The lens has been removed from the eye & is in the upper left of the view. The vitreous body is the gelatinous, semi-transparent material in the lower right.	Optic Nerve The fatty pad around the eye is pulled back, revealing parts of the skeletal muscles (in dark brown) that control the movement of the eye. The forceps are holding the optic nerve.