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4 days ago · There are two types of muscles, the rectus muscles and oblique muscles. Each eye has four rectus muscles. Their names and locations are: Superior rectus: Top (“superior” means “up” or “top”). Inferior rectus: Bottom (“inferior” means “down” or “bottom”). Medial rectus: The side closest to your nose ("medial” means ...
Mar 2, 2021 · There are two types of eye muscles: extrinsic muscles that control eye movement and position, and intrinsic muscles that control near focusing and how much light enters the eye. Extrinsic eye muscles (also called extraocular muscles) are attached to the outside of the eyeball and enable the eyes to move in all directions of sight.
- Anna Barden
- Lateral Rectus. The lateral rectus is a muscle of the eye’s orbit. The main function of this muscle is to pull the pupil away from the midline of the body.
- Medial Rectus. The medial rectus is also a muscle of the eye’s orbit. The only function of the medial rectus is to bring the pupil closer to the midline of the body.
- Inferior Rectus. The inferior rectus is also a muscle of the orbit. This muscle has multiple functions, mainly helping to extort the eye. The name comes from the Latin, and the word inferior means “lower.”
- Superior Rectus. The superior rectus is mostly in charge of elevation, which means it helps you look up. It has other functions but that is the primary one.
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- 18 min
- Bones of the orbit. The bony orbit is made out of seven bones, which include the maxilla, zygomatic bone, frontal bone, ethmoid bone, lacrimal bone, sphenoid bone and palatine bone.
- Eyelid anatomy. The eyelids are soft tissue structures that cover and protect the anterior surface of the eyeball. The anatomy of the eyelid may seem complex, but if we dissolve its multi-layered structure it is actually quite simple
- Lacrimal gland. The lacrimal gland is a part of the lacrimal apparatus, which besides the gland consists of its numerous ducts, the lacrimal canaliculi, lacrimal sac and nasolacrimal duct.
- Eye muscles. There are two groups of eye muscles: Extraocular muscles that move the eyeballs within the orbit. Intrinsic ocular muscles which are within the eyeball itself and control how the eyes accommodate.
Dec 22, 2022 · The extraocular muscles are located within the orbit, but are extrinsic and separate from the eyeball itself. They act to control the movements of the eyeball and the superior eyelid. There are seven extraocular muscles – the levator palpebrae superioris, superior rectus, inferior rectus, medial rectus, lateral rectus, inferior oblique and ...
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The two oblique muscles of the eye are responsible for the rotation of the eye and assist the rectus muscles in their movements. The superior oblique muscle rotates the eye medially and abducts it when the eye if facing forward while the inferior oblique rotates the eye laterally and adducts it. When the eye is adducted, or turned toward the ...
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Oct 9, 2024 · The following are parts of the human eyes and their functions: 1. Conjunctiva. The conjunctiva is the membrane covering the sclera (white portion of your eye). The conjunctiva also covers the interior of your eyelids. Conjunctivitis, often known as pink eye, occurs when this thin membrane becomes inflamed or swollen.
