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    Coordination and Response. PT3 2022

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    Suntharan Muniandy
    The document describes the key structures and functions of the human eye and ear. The eye contains structures like the cornea, iris, lens, retina, and optic nerve that work together to allow vision. The cornea and lens refract light to focus images, the iris regulates pupil size, and the retina contains photoreceptors that detect light and send signals to the brain. The ear contains the pinna, auditory canal, eardrum, ossicles, cochlea and auditory nerve that capture sound waves and transmit electrical signals to the brain. The ossicles transmit vibrations from the eardrum to the cochlea, and the cochlea converts the vibrations into nerve signals.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Coordination and Response. PT3 2022

    Uploaded by

    Suntharan Muniandy
    43 views3 pages
    The document describes the key structures and functions of the human eye and ear. The eye contains structures like the cornea, iris, lens, retina, and optic nerve that work together to allow vision. The cornea and lens refract light to focus images, the iris regulates pupil size, and the retina contains photoreceptors that detect light and send signals to the brain. The ear contains the pinna, auditory canal, eardrum, ossicles, cochlea and auditory nerve that capture sound waves and transmit electrical signals to the brain. The ossicles transmit vibrations from the eardrum to the cochlea, and the cochlea converts the vibrations into nerve signals.

    Original Description:

    Eye and ear structure and labelings

    Original Title

    Coordination and response. PT3 2022

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    The document describes the key structures and functions of the human eye and ear. The eye contains structures like the cornea, iris, lens, retina, and optic nerve that work together to allow vision. The cornea and lens refract light to focus images, the iris regulates pupil size, and the retina contains photoreceptors that detect light and send signals to the brain. The ear contains the pinna, auditory canal, eardrum, ossicles, cochlea and auditory nerve that capture sound waves and transmit electrical signals to the brain. The ossicles transmit vibrations from the eardrum to the cochlea, and the cochlea converts the vibrations into nerve signals.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    43 views3 pages

    Coordination and Response. PT3 2022

    Uploaded by

    Suntharan Muniandy
    The document describes the key structures and functions of the human eye and ear. The eye contains structures like the cornea, iris, lens, retina, and optic nerve that work together to allow vision. The cornea and lens refract light to focus images, the iris regulates pupil size, and the retina contains photoreceptors that detect light and send signals to the brain. The ear contains the pinna, auditory canal, eardrum, ossicles, cochlea and auditory nerve that capture sound waves and transmit electrical signals to the brain. The ossicles transmit vibrations from the eardrum to the cochlea, and the cochlea converts the vibrations into nerve signals.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    Ciliary muscles: contracts and relax to change the thickness

    
 of lense

    Convex Lens: focus image on retina


    Vitreous Humour: Maintain the shape of the eye,
    It has transparent jelly like matter that helps to focus the image on retina
    Night/Dark vision
    day/light vision
    Carrots Vit-A (Retinol)
    Cornea: A clear layer after conjunctiva
    and allow light to pass through.

    Iris muscle: Contracts and relax to regulate


    the size of the pupil. Retina - photoreceptors - Rod cells and Cone cells
    Choroid: Dark/black pigmentation. Absorb light and
    Pupil is the passage where light enters the eyeball.
    prevent reflection of light
    Yellow spot: a spot that is extremely
    sensitive to light.
    Aqueous humour: A water liquid that fills the Blind spot: Not sensitive to light.
    space between the cornea and the lens and Image is not visible at this spot.
    maintains the shape of the eye
    Optic nerve: Transmit impulse from the
    receptors to the brain to identify image.
    Conjunctiva: Transparent thin layer Sclera: protect and to maintain the shape of your eye.
    covering and protecting the front of the eye.

    Suspensory ligaments: Hold the lens in place


    


    Ossicle bones/
    auditory Ossicle: Receive vibrations from eardrum and sends the vibration
    to cochlea through the oval window.

    Semicircular canal: provide body balance***

    Ear pinna: Flap of skin


    and cartilage that collect sound waves
    and directs it to the auditory canal

    Auditory canal: collects sound waves


    from ear pinna and directs the wave to auditory drum
    Cochlea: Fluid filled, hairy structure (receptors)
    receives stimuli and change it to impulses.

    Auditory drum:
    Receives sound waves from the auditory canal and vibrates

    Eustachian tube: ensures both ear has


    equal air pressure.

    Oval window:
    Receives vibrations from ossicles
    and send it to cochlea

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