2330456
Descripción
Test por #أطباء_2020 , actualizado hace más de 1 año
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Creado por #أطباء_2020
hace más de 9 años
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Pregunta 1
Pregunta
Which of the following is true of the vascular layer of the eye
Respuesta
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Provides a route for blood vessels and lymphatics that supply the eye
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Regulates the amount of light entering the eye
-
Secretes and reabsorbs the aqueous humour
-
Controls the shape of the lens
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All of above
Pregunta 2
Pregunta
The space between the iris and cilliary body and the lens is the:
Respuesta
-
Anterior chamber
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Posterior chamber
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Pupil
-
Posterior cavity
-
B and D
Pregunta 3
Pregunta
In human eye, most refraction occurs when light passes through the
Respuesta
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Iris
-
Cornea
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Lens
-
Aqueous humor
-
Vitreous humor
Pregunta 4
Pregunta
Linear acceleration in the vertical plane is signaled by hair cells in
Respuesta
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Anterior semicircular canal
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Saccule
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Posterior semicircular canal
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Utricle
Pregunta 5
Pregunta
Alpha block is produced by
Respuesta
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Mental arithmetic
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Stimulation of ascending reticular activating system
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Opening one eye
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During sleep
Pregunta 6
Pregunta
Hypothalamus doesn't play a prominent role in the regulation of
Respuesta
-
Food and water intake
-
Temperature
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Respiration
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Osmolality
Pregunta 7
Pregunta
The categorical hemisphere is chiefly concerned with
Respuesta
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Language
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Recognition of faces
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Stereognosis
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Spatiotemporal relations
Pregunta 8
Pregunta
Damage to what region of the brain affects recent memory,
Which is the process in which short-term memory is converted to long-term memory
Respuesta
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Pons
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Medulla
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Substantia nigra
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Hypothalamus
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Hippocampus
Pregunta 9
Pregunta
Regarding sleep :
Respuesta
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Slow wave sleep reflects mental rest
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Slow wave sleep is associated with rapid eye movement
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During slow wave sleep, the secretion of GH is decreased
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REM sleep is associated with marked decrease in muscle tone
Pregunta 10
Pregunta
The ciliary muscle contracts to:
Respuesta
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Control amount of light reaching the retina
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Adjust the shape of the lens for distant vision
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Adjust the shape of the lens for near vision
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Control the production of aqueous humor
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Adjust the shape of the cornea and vitreous
Pregunta 11
Pregunta
The transparent anterior portion of the eye is :
Respuesta
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Choroid
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Ciliary body
-
Cornea
-
Iris
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Retina
Pregunta 12
Pregunta
When a bright light shines in the eye, what reflex action takes place
Respuesta
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Ciliary body secretes tears
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Extrinsic eye muscles contract
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Radial muscles of the iris contract
-
Ciliary muscles contract
-
Circular muscles of iris contract
Pregunta 13
Pregunta
What is the function of the fatty layer in tears:
Respuesta
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Make photoreceptor cells
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Make mucous
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Produce cilia to wipe dust away from eye surface
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Make an oily secretion to lubricate the eye & prevents rapid tear evaporation
-
Promote lid closure reflexes
Pregunta 14
Pregunta
Rods and cones are distributed over the entire retina except for the
Respuesta
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Optic disc
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Choroids
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Ora serrata
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Sclera
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Lens
Pregunta 15
Pregunta
What is the ability of the eye to focus specifically on close objects (less than 20 feet away )
Respuesta
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Adaptation
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Accommodation
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Refraction
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Synthesis
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Indentation
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