What is the lower rectus muscle?

There are six extra -peak muscles that move the pupil up, down, side to the side and in a combination of these handsome. As its name denotes, the lower rectus muscle connects to the glass - the white "ball" of the eyeball - at the bottom of the structure and primarily works to move the view down in a process known as depression. Other extraocular muscles are excellent rectus, media rectus, lateral rectus, superior to oblique and lower oblique. All except one of these muscles form in each orbit of a conical shape with the mouth of the cone, where the muscles are connected to the eyeball and a sharp point of the cone, where the muscles bring to the annular tendons. The optical nerve, the cranial nerve II, passes through this ring tendon through the cone to the pupil. The primary function of the lower rectus muscle is the movement of the mines or depression of the pupil. The secondary function of the lower rectus muscle is the rotation of the upper part of the eyeball from the nose in a process known as expansion. Finally, the tertiary function of this muscle is to move the pupil inward or medially inaduke.

Some eye movements are the result of only one extraocular muscle contractions, while others require two muscles working in conjunction. The muscle primarily responsible for the pupil movement is referred to as an agonist. Other extraocular muscles that help in movement are known as synergists. The extraocular muscles that move the pupil in the opposite direction are antagonists. The lower rectus muscle is therefore an agonist for the movement of the pupil down; Synergist for expanding or adction; and an antagonist for the movement of Eye Eye upside down above the altitude.

These descripts refers only to the movement of one eye called Duction. For a single pupil, this movement of depression down is also known as infraction. But when two eyes work, the movement of the eyes is known as the version. If you want to look down with both eyes, perform either infravery or deorsumversion, both the right and left lower rectus muscles - n mustebo recti - to conclude a contract to force this movement. In addition, the right and left superior oblique recti works as synergists to inferior rectal muscle to move each eye in the same direction.