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2041. FMA. 49033. Anatomical terms of muscle. [ edit on Wikidata] The extraocular muscles, or extrinsic ocular muscles, are the seven extrinsic muscles of the eye in humans and other animals. [ 1] Six of the extraocular muscles, the four recti muscles, and the superior and inferior oblique muscles, control movement of the eye.
The human eye is a sensory organ in the visual system that reacts to visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and keeping balance . Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device. It is approximately spherical in shape, with its outer ...
Posterior segment of eyeball. The posterior segment or posterior cavity [1] is the back two-thirds of the eye that includes the anterior hyaloid membrane and all of the optical structures behind it: the vitreous humor, retina, choroid, and optic nerve. [2] The portion of the posterior segment visible during ophthalmoscopy (or fundoscopy) is ...
Anterior chamber of eyeball. Anterior part of human eye, with anterior chamber at right. Schematic diagram of the human eye. The anterior chamber ( AC) is the aqueous humor -filled space inside the eye between the iris and the cornea 's innermost surface, the endothelium. [ 1] Hyphema, anterior uveitis and glaucoma are three main pathologies in ...
Human anatomy – scientific study of the morphology of the adult human. It is subdivided into gross anatomy and microscopic anatomy. Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by unaided vision. Microscopic anatomy is the study of minute anatomical ...
Corneal topography, also known as photokeratoscopy or videokeratography, is a non-invasive medical imaging technique for mapping the anterior curvature of the cornea, the outer structure of the eye. Since the cornea is normally responsible for some 70% of the eye's refractive power, [ 1] its topography is of critical importance in determining ...
Vulva. In mammals, the vulva ( pl.: vulvas or vulvae) consists of the external female genitalia. For humans, it includes the mons pubis, labia majora, labia minora, clitoris, vestibule, urinary meatus, vaginal introitus, hymen, and openings of the vestibular glands. The vulva includes the entrance to the vagina, which leads to the uterus, and ...
Ibn al-Haytham took a straightforward approach towards vision by explaining that the eye was an optical instrument. [73] The description on the anatomy of the eye led him to form the basis for his theory of image formation, which is explained through the refraction of light rays passing between two media of different densities. [73]