Tag: optic

The brain stem of the sheep is located on the ventral surface of the brain. Visible features include the olfactory lobe, optic chiasma, pituitary stalk (infundibulum), midbrain, pons, medulla oblongata and the spinal cord.   The image below shows the brain of the sheep with the dura mater removed.

This dissected eye shows the clear gel that fill the space between the lens and the retina of the eye.  In a preserved specimen, the fluid is cloudy and thick, having the consistency of gelatin.  When the eye is cut in half, the lens can be found floating …

Procedural video showing how to dissect the eye and identify the major structures such as the lens, iris, pupil, vitreous humor, retina, optic disk, optic nerve. and tapetum.  Unlike humans, cows have a reflective surface on the back of their eye which enables them to see in the …

On the ventral side of the sheep’s brain, several nerves and structures are visible after the careful removal of the dura mater.   The image below shows the brain with the dura intact and the eye socket attached.  The blue reflective surface of the sheep tapetum can be …

  A = retina | B = choroid | C = sclera | D = cornea E = lens  | F = pupil | G = iris  | H = suspensory ligaments I = optic disk | J = optic nerve | K = fovea centralis (macula) X …