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  1. Sarah did her project on the process of blinking and the muscle contractions within the eye. The objective she covered was designing instructions integrating muscles and bones that you pick. She covered the instructions the eyes take to blink and the process involving muscles and bones. The levator palpebrae superioris is a muscle located on the upper eyelid and is the first step to blinking. The orbicularis oculi is also a muscle involved in the eye blinking, it controls the eyelid closing. The nasolacrimal duct is where tears are driven from when the relaxation of lacrimal sac. The eye tears after the pretarsal muscle pulls on the lacrimal diaphragm. This causes a negative pressure in the lacrimal sac and makes the ere tear. The orbital eye socket is the set of bones that surround the eye socket, these bones protect your eyes.
    Sarah used a crochet model of the eye to show how it is structured. She showed many pieces involved in the eye this includes, the pupil, the cornea, the iris, the sclera, the arteries in the eye, also the veins involved in the eye, the optic nerve, the lateral rectus, the medial rectus, and the superior oblique parts of the eyeball. This model helped show how the eyeball is structured and the different pieces in the eye that help make the eye contract and the pieces of that help contract the eye. She also included a key made of yarn to help show each piece of her model and what each color of yarn represents in her model. It helps show where exactly each piece is in the eye and helps create a good visual representation of the eye.

    Annabell Martin

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