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The vestibulo-ocular reflex is a reflex eye movement that stabilizes images on the retina during head movement by producing an eye movement in the direction opposite to head movement in response to neural input from the vestibular system of the inner ear, thus maintaining the image in the centre of the visual field. For example, when the head ...
The globe of the eye, or bulbus oculi, is the frontmost sensory organ of the human ocular system, going from the cornea at the front, to the anterior part of the optic nerve at the back. More simply, the eyeball itself, as well as the ganglion cells in the retina that eventually transmit visual signals through the optic nerve. [1]
The anterior segment or anterior cavity [1] is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens. [2] [3] Within the anterior segment are two fluid-filled spaces: the anterior chamber between the posterior surface of the cornea (i.e. the corneal endothelium) and the ...
Primal Pictures is a business established in 1991 that provides 3D graphic renderings of human anatomy, built using real scan data from the Visible Human Project, for use by healthcare students, educators, and medical professionals. It operates the Anatomy.tv online platform. [1]
Eye; Fovea centralis; Globe (human eye) Human eye; Hyaloid artery; Hyaloid canal; Hyphema; Intraocular hemorrhage; Iris (anatomy) Lens (vertebrate anatomy) Macular telangiectasia; Mammalian eye; Ocular immune system; Optic disc; Periocular injection; Persistent tunica vasculosa lentis; Pigment dispersion syndrome; Posterior chamber of eyeball ...
The eyes of most cephalopods, fish, amphibians and snakes have fixed lens shapes, and focusing is achieved by telescoping the lens in a similar manner to that of a camera. [5] The compound eyes of the arthropods are composed of many simple facets which, depending on anatomical detail, may give either a single pixelated image or multiple images ...
Micrographs and 3D drawing of a "foot" structures on eye lens capsules. The lens capsule is a transparent membrane that surrounds the entire lens. The capsule is thinnest at the posterior pole with approximate thickness of 3.5μm. Average thickness at the equator is 7μm. [7] [10] Anterior pole thickness increases with age from 11-15μm.
Diagram of a human eye (horizontal section of the right eye) 1. Lens, 2. Zonule of Zinn or Ciliary zonule, 3. Posterior chamber and 4. Anterior chamber with 5. Aqueous humour flow; 6. Pupil, 7. Corneosclera or Fibrous tunic with 8. Cornea, 9. Trabecular meshwork and Schlemm's canal. 10. Corneal limbus and 11. Sclera; 12. Conjunctiva, 13. Uvea ...
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