Sight - The Eye I Crossword Puzzle

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AQUEOUS HUMOUR : This chamber of transparent fluid behind the cornea supplies nutrients to the cornea & refracts light. It is part of the vascular tunic.
SCLERA : This layer of the fibrous tunic is made of white fibrous tissue maintains the eye shape & protects the photocells.
IRIS : This circular, pigmented muscular membrane is suspended between the cornea & the lens. It regulates the amount of light entering the eyeball, by regulating the size of the pupil. It is part of the vascular tunic.
PUPIL : This black hole in the centre of the iris functions as a passageway for light to enter the eye. It is part of the vascular tunic.
LENS : This transparent, biconvex, oval-shaped object is constructed of many layers of protein fibres & functions to focus the image on the retina. It is part of the vascular tunic.
VITREOUS HUMOUR : This cloudy, jelly-like material prevents the eyeball from collapsing & holds the retina flush against the internal portions of the eyeball, allowing for light transmission to the retina.  It is part of the vascular tunic.
VASCULAR TUNIC : This middle layer of the eye is rich with blood vessels.
CORNEA : This layer of the fibrous tunic is clear and bulging, contains no blood vessels & acts as a window for the eye.
NERVOUS TUNIC : This inner layer of the eye consists of the retina.
RETINA : This part of the nervous tunic lies only in the posterior portion of the eye & has the primary function of image formation.
TEARS : The cornea is supplied with oxygen by the gases dissolved in these.
CHOROID : This posterior portion of the vascular tunic lines the internal surface of the sclera & functions to absorb light rays so they do not reflect back out of the eyeball & nourishes the retina with its blood vessel supply.
FIBROUS TUNIC : This outer layer of the eye (closest to outside world) maintains the shape of the eye.
CILIARY MUSCLES : These are attached to ligaments suspended from superior & inferior ends of the lens & they help to change lens shape.

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QUESTIONS LIST:

aqueous humour : this chamber of transparent fluid behind the cornea supplies nutrients to the cornea & refracts light. it is part of the vascular tunic.
sclera : this layer of the fibrous tunic is made of white fibrous tissue maintains the eye shape & protects the photocells.
iris : this circular, pigmented muscular membrane is suspended between the cornea & the lens. it regulates the amount of light entering the eyeball, by regulating the size of the pupil. it is part of the vascular tunic.
pupil : this black hole in the centre of the iris functions as a passageway for light to enter the eye. it is part of the vascular tunic.
lens : this transparent, biconvex, oval-shaped object is constructed of many layers of protein fibres & functions to focus the image on the retina. it is part of the vascular tunic.
vitreous humour : this cloudy, jelly-like material prevents the eyeball from collapsing & holds the retina flush against the internal portions of the eyeball, allowing for light transmission to the retina. it is part of the vascular tunic.
vascular tunic : this middle layer of the eye is rich with blood vessels.
cornea : this layer of the fibrous tunic is clear and bulging, contains no blood vessels & acts as a window for the eye.
nervous tunic : this inner layer of the eye consists of the retina.
retina : this part of the nervous tunic lies only in the posterior portion of the eye & has the primary function of image formation.
tears : the cornea is supplied with oxygen by the gases dissolved in these.
choroid : this posterior portion of the vascular tunic lines the internal surface of the sclera & functions to absorb light rays so they do not reflect back out of the eyeball & nourishes the retina with its blood vessel supply.
fibrous tunic : this outer layer of the eye (closest to outside world) maintains the shape of the eye.
ciliary muscles : these are attached to ligaments suspended from superior & inferior ends of the lens & they help to change lens shape.