Quiz
HBF & vision
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Fragen in diesem Quiz (15)
1Which of the following is true of the vascular layer of the eye
- AProvides a route for blood vessels and lymphatics that supply the eye
- BRegulates the amount of light entering the eye
- CSecretes and reabsorbs the aqueous humour
- DControls the shape of the lens
- EAll of above
2The space between the iris and cilliary body and the lens is the:
- AAnterior chamber
- BPosterior chamber
- CPupil
- DPosterior cavity
- EB and D
3In human eye, most refraction occurs when light passes through the
- AIris
- BCornea
- CLens
- DAqueous humor
- EVitreous humor
4Linear acceleration in the vertical plane is signaled by hair cells in
- AAnterior semicircular canal
- BSaccule
- CPosterior semicircular canal
- DUtricle
5Alpha block is produced by
- AMental arithmetic
- BStimulation of ascending reticular activating system
- COpening one eye
- DDuring sleep
6Hypothalamus doesn't play a prominent role in the regulation of
- AFood and water intake
- BTemperature
- CRespiration
- DOsmolality
7The categorical hemisphere is chiefly concerned with
- ALanguage
- BRecognition of faces
- CStereognosis
- DSpatiotemporal relations
8Damage to what region of the brain affects recent memory,
Which is the process in which short-term memory is converted to long-term memory- APons
- BMedulla
- CSubstantia nigra
- DHypothalamus
- EHippocampus
9Regarding sleep :
- ASlow wave sleep reflects mental rest
- BSlow wave sleep is associated with rapid eye movement
- CDuring slow wave sleep, the secretion of GH is decreased
- DREM sleep is associated with marked decrease in muscle tone
10The ciliary muscle contracts to:
- AControl amount of light reaching the retina
- BAdjust the shape of the lens for distant vision
- CAdjust the shape of the lens for near vision
- DControl the production of aqueous humor
- EAdjust the shape of the cornea and vitreous
11The transparent anterior portion of the eye is :
- AChoroid
- BCiliary body
- CCornea
- DIris
- ERetina
12When a bright light shines in the eye, what reflex action takes place
- ACiliary body secretes tears
- BExtrinsic eye muscles contract
- CRadial muscles of the iris contract
- DCiliary muscles contract
- ECircular muscles of iris contract
13What is the function of the fatty layer in tears:
- AMake photoreceptor cells
- BMake mucous
- CProduce cilia to wipe dust away from eye surface
- DMake an oily secretion to lubricate the eye & prevents rapid tear evaporation
- EPromote lid closure reflexes
14Rods and cones are distributed over the entire retina except for the
- AOptic disc
- BChoroids
- COra serrata
- DSclera
- ELens
15What is the ability of the eye to focus specifically on close objects (less than 20 feet away )
- AAdaptation
- BAccommodation
- CRefraction
- DSynthesis
- EIndentation
Informationen
- Beschreibung
- Review
- Autor
- #أطباء_2020
- Sprache
- English
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- 91
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