histolohy

In the electron microphotograph revealed cell of neural origin. Terminal part of the cell dendrite has cylindrical shape and consists of 1000 enclosed membrane discs. What cell is this?

The increased intraocular tension is observed in the patient with glaucoma. Secretion of aqueous humor by the ciliary body is normal. Injury of what structure of the eyeball wall does the disorder of outflow from the anterior chamber cause?

During the examination the doctor found that the patient does not distinguish blue and green colors with normal perception of other colors. What structure is disordered?

A lot of people with age have clouding of the lens (phacoscotasmus or cataract). It became opaque that leading to the partial blindness. What optical and chemical properties of the lens fibers protein will be disordered?

In the histological specimen of the eyeball wall, structure which consists of three neurons chain is revealed. Bodies of these neurons form outer, inner nuclear and ganglion cell layers. Which eye component has this morphologic structure?

An infectious disease caused contractive activity of muscles that contract and dilate eye pupil (paralytic state). What functional eye system was damaged?

Nutrition of the cornea is carried out:

Patient with eye trauma consulted a doctor. During examination of corneal epithelium was revealed changes. What epithelium was damaged?

Patient has appealed to the ophthalmologist with complaints about hurt in his eyes, which revealed itself after long presence of the patient in the field during dust storm. Doctor diagnosed superficial injuries of the external corneal epithelium. Which cells provide regeneration of the injured epithelium?

Cells peripheral part of which consists of two segments were revealed in the electron microphotograph of the sense organ. The outer segment has membrane half discs and the inner one has ellipsoid. In what organ does this structure locate?

Transplantation of the cornea was done to the patient. Which peculiarities of the cornea structure give expectation to engraftment of it?

An eyeball structure without blood vessels was detected in a histological specimen. What structure is characterized by this morphological sign?

55-year-old man went to the doctor with complains about the significant increase in the distance that he has the ability to read without glasses. What part of the eye has undergone age-related changes that have led to this condition?

Cells of the retina which have outer and inner segments in the dendrites are presented in the electron microscope picture. The outer segment contains hemidisc and inner segment contains lipid droplet surrounded by mitochondria. What do these cells?

A cell of the retina in which one of the processes has a segment with hemidiscs is visible in the electron microscope picture. What pigment is contained in the structure of the membrane of these hemidiscs?

Deficiency of the vitamin A results in the impairment of twilight vision. Name the cells that have the above-mentioned photoreceptor function:

Damages of vascular membrane are detected in the histological specimen of a fetus eyeball. What embryonic material was probably damaged during the development of the eye?

An ophthalmologist has detected that patient has disorder of green color perception during examination. Which retina cells absence may cause this sight disorder?

Underdeveloped epithelium of cornea is observed in the histological specimen of a fetus’ eyeball. A part of what embryonal layer was probably affected in the process of embryogenesis?

An infectious disease caused contractive activity of muscles that contract and dilate eye pupil (paralytic state). What functional eye system was damaged?

A 14-year-old patient has twilight vision impairment. What vitamin deficiency takes place in the organism?

The patient attended the ophthalmologist with nyctalopia (night blindness). The doctor examined the retina and found degenerative changes in the photosensory layer of the rods of the retina. What vitamin will be prescribed by a doctor?

Ciliary body was damaged in the patient. Function of what eye apparatus will suffer in this case?