WebCranial nerve 4: The trochlear nerve controls muscles in the eye. It emerges from the back of the midbrain part of the brainstem. Cranial nerve 5: The trigeminal nerve is the largest and most complex of the cranial … WebCancers around the eyeball The areas around the eyes are the orbit (eye socket) and the accessory muscles. Cancers that develop in these parts of the eye are cancers of muscle, nerve and skin tissue. Basal cell carcinoma (BCC) Basal cell carcinoma (BCC) is a cancer found on the skin around the body, often caused by sun exposure.
Epithelial Tissue (Epithelium) - Definition, Types and …
Made of nerve cells, the optic nerve is located in the back of the eye. Also known as the second cranial nerve or cranial nerve II, it is the second of several pairs of cranial nerves . It is a bundle of nerve cells that transmits sensory information for vision in the form of electrical impulses from the eye to the brain. Meer weergeven The optic nerve is mainly made up of the axons (nerve fibers) of the retinal ganglion cells from the retina. The optic disc or nerve head is the point where the axons from the retinal ganglion cells leave the eye. The … Meer weergeven The optic nerve produces all sorts of visual information. The optic nerve is also responsible for the light reflex and the accommodation reflex.1 These are two important neurological reflexes. The light reflex allows … Meer weergeven Treatment of optic nerve damage, chiasma or optic radiation damage depends on the cause. However, treatments for optic nerve damage may not restore lost sight. In most cases, measures are … Meer weergeven Web8 sep. 2024 · The part of nerve cell body where the axon originates. ... Light Microscopy. A large, central, light (euchromatic) nucleus with a single central nucleolus (the nucleus resembles an eye). Basophilic clumps are seen in the cytoplasm surrounding the nucleus. ... Rare in nerve tissue, e.g., found in the retina. Mediated by gap junctions. small southern cottage house plans
Researchers look to the eye for insights about the brain
Web5 aug. 2024 · Trigeminal Nerve (CN V): Of the 3 branches of the trigeminal nerve, the ophthalmic nerve is involved in sensory innervation of the eye. It works as an afferent part of the corneal and lacrimation reflex. The … WebThe front part (what you see in the mirror) includes: Iris: the colored part. Cornea: a clear dome over the iris. Pupil: the black circular opening in the iris that lets light in. Sclera: the ... WebNeovascularization, or fine lacy blood vessels, are seen on the optic nerve, retina (see Figs. 10-5 and 10-8), or iris surface (see Fig. 10-6). Preretinal hemorrhages are boat-shaped hemorrhages that may be located anterior to the retinal vessels and block the view of these underlying vessels (see Fig. 10-8).. Cotton-wool spots often are present (see Fig. 10-5). highway 26 singers in georgia