anterior cavity (anterior to lens, contains watery aqueous humor) posterior cavity (posterior to lens, contains gel-like vitreous humor) scleral venous sinus (canal of Schlemm) Define the following disorders: cataract glaucoma Dissection: The Sheep Eye Follow the dissection procedure outlined in your lab manual and identify the following structures of the sheep eye, and state the function of each: cornea lens sclera optic disc optic nerve retina extrinsic muscle attachments choroid ciliary body tapetum lucidum iris vitreous humor Microscopic Anatomy of the Retina Identify the following structures on the retina model and microscope slide, and the state the functions of each structure (on microscope slides, identify the cell layers of retina by locating the layers of dark-staining nuclei). sclera bipolar neurons & their nuclei choroid with blood vessels ganglion cells & their axons & pigmented epithelium of retina nuclei rods & cones & their nuclei Visual Pathways to the Brain Visual Tests & Experiments Trace the path action potentials travel Various activities are listed in the lab from the axon of the ganglion cells of the manual for different visual tests and retina to the visual cortex in the occipital experiments. Materials for performing these lobe of the brain: tests are provided in the lab. Perform these axons of ganglion cells become activities and explain the optic nerve decussation of medial anatomical/physiologic basis for the nerve fibers at the optic chiasma responses to each test. optic tracts (have fibers from the lateral side of the eye on the same Activity 1: Visual Acuity side and from the medial side of the opposite eye) synapse with Activity 2: Astigmatism Test neurons in the lateral geniculate body of the thalamus emerging Activity 3: Blind Spot Mapping axons form the optic radiation reach visual cortex in occipital lobe Activity 4: Accommodation synapse with cortical cells and visual interpretation areas. Activity 5: Testing for Color Blindness
anterior cavity (anterior to lens, contains watery aqueous humor) posterior cavity (posterior to lens, contains gel-like vitreous humor) scleral venous sinus (canal of Schlemm) Define the following disorders: cataract glaucoma Dissection: The Sheep Eye Follow the dissection procedure outlined in your lab manual and identify the following structures of the sheep eye, and state the function of each: cornea sclera optic nerve extrinsic muscle attachments ciliary body iris lens optic disc retina choroid tapetum lucidum vitreous humor Microscopic Anatomy of the Retina Identify the following structures on the retina model and microscope slide, and the state the functions of each structure (on microscope slides, identify the cell layers of retina by locating the layers of dark-staining nuclei). sclera choroid with blood vessels pigmented epithelium of retina rods & cones & their nuclei bipolar neurons & their nuclei ganglion cells & their axons & nuclei Visual Pathways to the Brain Trace the path action potentials travel from the axon of the ganglion cells of the retina to the visual cortex in the occipital lobe of the brain: axons of ganglion cells become optic nerve decussation of medial nerve fibers at the optic chiasma optic tracts (have fibers from the lateral side of the eye on the same side and from the medial side of the opposite eye) synapse with neurons in the lateral geniculate body of the thalamus emerging axons form the optic radiation reach visual cortex in occipital lobe synapse with cortical cells and visual interpretation areas. Visual Tests & Experiments Various activities are listed in the lab manual for different visual tests and experiments. Materials for performing these tests are provided in the lab. Perform these activities and explain the anatomical/physiologic basis for the responses to each test. Activity 1: Visual Acuity Activity 2: Astigmatism Test Activity 3: Blind Spot Mapping Activity 4: Accommodation Activity 5: Testing for Color Blindness
Eye.docx