Eye Muscle Diagram
The four rectus muscles of the eye control the movement of the eye in the cardinal directions. Muscles of the eye.
The Eye And Vision Rectus Muscle Anatomy And Physiology Autonomic Nervous System
Optic nerve CN II.
Eye muscle diagram. The first of these muscles the superior rectus muscle elevates the eye allowing the eye to look up. It is enclosed within the eye sockets in the skull and is anchored down by muscles within the sockets. While the eyeball is the actual sensory organ the other parts of of the eye are equally important in maintaining the health and function of the eye as.
Responsible for eye movement. The Human Eye Eyeball Diagram Parts and Pictures. There are three centers of growth that are important in the development of the eye and each is associated with a nerve.
The human eye has six eye muscles. The first set is the superior and inferior rectus muscles which allow upward and downward motion. Anatomically the eye comprises two components fused into one.
The extraocular muscles are placed in the orbit but are extrinsic and separate from the eyeball itself. The eye sits in a protective bony socket called the orbit. They are split into two primary groups.
The human eye consists of the eyeball optic nerve orbit and appendages eyelids extraocular muscles and lacrimal glands. These muscles move the eye up and down side to side and rotate the eye. Hence the subsequent nerve supply innervation of the eye muscles is from three cranial nerves.
Read an overview of general eye anatomy to learn how the parts of the eye work together. The superior oblique is a fusiform spindle-shaped muscle belonging to the extraocular group of muscles. Responsible for superior eyelid movement Recti and oblique muscles.
There are six muscles per eye responsible for generating all movements of the eyes in their bony orbits. The development of the extraocular muscles is dependent on the normal development of the eye socket while the formation of the ligament is fully. It originates near the nose.
Sphincter pupillae dilator pupillae ciliaris. The extraocular muscles are attached to the white part of the eye called the sclera. The four recti muscles are the lateral rectus the medial rectus the inferior rectus and the superior rectus while the two oblique muscles are the inferior oblique and the superior oblique.
The other four muscles move the eye up down and at an angle. Superior rectus inferior rectus medial rectus lateral rectus superior oblique inferior oblique levator palpebrae superioris Intrinsic. There are six muscles involved in the control of the eyeball itself.
Eye Muscle Diagram System Picture. The main muscles of the eye are Lateral rectus Medial rectus Superior rectus and inferior rectus. The central artery supplies the retina while the central vein drains the retina.
They work against each other to control the movements of the eye in various directions. One muscle moves the eye to the right and one muscle moves the eye to the left. Cornea anterior chamber lens vitreous chamber and retina.
Hence it does not possess a perfect spherical shape. Eye muscles Diagram Quizlet. The four recti muscles and the two oblique muscles.
Clinical test used to examine the occulomotor system extraocular muscles Cardinal planes of gaze Pupillary muscle that control the amount of light entering the eye by changing the diameter of the pupil. On the medial side of the eye the medial rectus muscle adducts the eye. A series of muscles helps the eye move.
They can be divided into two groups. May 30 2020 - Explore Erica Yis board Eye anatomy diagram on Pinterest. The medial and lateral rectus muscles allow the eye to.
Upgrade to remove ads. Head Human Muscles November 21 2019. Lateral Rectus LR Medial Rectus MR Superior Rectus SR Inferior Rectus IR Superior Oblique SO Inferior Oblique IO When considered together with the exception of the inferior oblique these muscles take on the shape of a cone.
The recti muscles and the oblique muscles. The white of your eye. This is a strong layer of tissue that covers nearly the entire.
The extraocular muscles develop along with Tenons capsule part of the ligaments and the fatty tissue of the eye socket orbit. Innervation of the eye. These muscles characteristically originate from the common tendinous ring.
See more ideas about eye anatomy anatomy anatomy and physiology. A thin layer of tissue that covers the entire front of your eye except for the cornea. Muscles of Eye Movement.
They work to control the movements of the eyeball including the superior eyelid. Just behind the iris. Along with the other extraocular muscles it performs the role.
The antagonist of the superior rectus muscle is the inferior rectus muscle which depresses the eye allowing the eye to look down. Central Artery and Vein The central artery and vein runs through the center of the optic nerve. There are seven extraocular muscles-Levator palpebrae superioris.
Six extraocular muscles in the orbit are attached to the eye. There are four recti muscles. The human eye is a roughly spherical organ responsible for perceiving visual stimuli.
2015 WebMD LLC. Structure of the eye. Superior rectus inferior rectus medial rectus and lateral rectus.
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