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Iris (anatomy) print that page


The iris (plural: irides , or rarely, irises) is a thin, circular structure in the eye , responsible for controlling the diameter and size of the pupils and thus the amount of light reaching the retina . "Eye color" is the color of the iris , which can be green, blue, or brown. In some cases

Human eye print that page


is typically about 12 mm. The cornea and sclera are connected by a ring called the limbus. The iris – the color of the eye – and its black center, the pupil, are seen instead of the cornea due to the cornea's transparency. To see inside the eye, an ophthalmoscope is needed, since light

Corneal transplantation print that page


as well as scarring due to keratitis and trauma . Tectonic/reconstructive: To preserve corneal anatomy and integrity in patients with stromal thinning and descemetoceles , or to reconstruct the anatomy of the eye, e.g. after corneal perforation . Therapeutic: To remove inflamed corneal

Herophilos print that page

medieval times only few insights were added. Dissecting with the purpose to gain knowledge about human anatomy started again in early modern times (Vesalius), more than 1600 years after Herophilos' death. [ edit ] Medicine Herophilus is thought to be one of the founders of the scientific | 2011/9/28 16:04:11

Fingerprint print that page


A fingerprint in its narrow sense is an impression left by the friction ridges of a human finger . [ 1 ] In a wider use of the term, fingerprints are the traces of an impression from the friction ridges of any part of a human hand . A print from the foot can also leave an impression of friction

Bird vision print that page


receptors to improve distance vision especially in hazy conditions. Contents 1 Extraocular anatomy 2 Anatomy of the eye 3 Light perception 3.1 Ultraviolet 4 Perception 4.1 Movement 4.2 Edges and shapes 4.3 Magnetic fields 5 Variations across bird groups 5

Sclera print that page

color of the human sclera, which many other species share, but also to the fact that the human iris is relatively small and comprises a significantly smaller portion of the exposed eye surface compared to other animals. It is theorized that this adaptation evolved because of our social nature | 2011/9/10 7:28:05

Equine vision print that page


discover why the animal behaves the way he does in various situations. Contents 1 The anatomy of the equine eye 1.1 The eyeball 1.1.1 Eye color 1.2 The adnexa 2 Visual capacity of the horse 2.1 Visual field 2.2 Visual acuity and sensitivity to motion 2.3 Color

Uvea print that page

size and shape when stripped intact from a cadaveric eye. [ 1 ] Its use as a technical term in anatomy and ophthalmology is relatively modern. Contents 1 Anatomy 1.1 Regions 2 Physiology 3 Pharmacology 4 Immunology 5 Pathology 6 External links 7 References | 2011/6/7 22:56:52

Ciliary processes print that page

are received between corresponding foldings of the suspensory ligament of the lens . [ edit ] Anatomy They are arranged in a circle, and form a sort of frill behind the iris , around the margin of the lens . They vary from sixty to eighty in number, lie side by side, and may be divided | 2010/9/25 12:27:07