SENSORY ORGANS

Neural origin cell is represented in the electron micrograph. Terminal part of the cell dendrite is cylindrically in shape and consists of 1000 membrane enclosed discs. What cell is shown in this microphotograph?

• Rod cell

• Cone cell

• Spinal ganglion

• Neuron of the spinal cord

• Neuron of the cerebral cortex

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

• Dioptric

• Accommodative

• Ancillary

• Photosensory

• Lacrimal apparatus

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

• B 1

• В 6

• A

• C

• В 12

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?

• Amacrine neurons

• Bipolar neurons

• Rod receptor cells

• Cones receptor cells

• Horizontal neurons

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

• Cornea

• Ciliary body

• Choroid

• Iris

• Retina

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?

• Vitrein

• Crystalline

• Dinein

• Rhodopsin

• Iodopsin

A patient had taken high doses of streptomycin and consequently became deaf. The function of what cells of the inner ear was damaged in this case?

• Deiters’

• Pillar

• Hair

• Phalangeal

• Connective tissue

In an electronic micrograph of a sense organ hair cells are seen, on their apical part there are short microvilli – stereocilii and a polar located kinocilium. What sensory organ are such cells typical for?

• Hearing organ

• Olfactory organ

• Vision organ

• Vestibular organ

• Taste organ

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?

• Iodopsin

• Rodopsin

• Melanin

• Hemosiderin

• Lipofuscin

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

• Simple pseudostratified

• Stratified squamous non keratinized

• Stratified squamous keratinized

• Stratified cuboidal

• Stratified cylindrical