What does the lateral rectus muscle do?
The lateral rectus is a flat-shaped muscle, and it is wider in its anterior part. The lateral rectus muscle is an abductor and moves the eye laterally, and side to side along with the medial rectus, which is an adductor.
How do I define my rectus abdominis?
The rectus abdominis muscle, also known as the “abdominal muscle” or simply the “abs”, is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals….Rectus abdominis muscle.
| Rectus abdominis | |
|---|---|
| FMA | 9628 |
| Anatomical terms of muscle |
How do you strengthen the lateral rectus muscle?
Lateral rectus exercises The cardinal point exercise involves looking to the extreme in each direction – up, down, right, and then left. Hold your eyes in position for ten seconds at each cardinal point. Repeat the exercise a total of five times. The eye rolling exercise is exactly what it sounds like.
What Innervates the lateral rectus?
The abducens nerve (cranial nerve VI) exits the brainstem from the pons-medullary junction and innervates the lateral rectus muscle.
What muscles are in your side?
Your oblique muscles (side abdominals) help you bend from the side or twist your torso. Strong obliques support the lower back, warding off back pain and posture problems.
What rectus means?
straight muscles
Definition of rectus : any of several straight muscles (as of the abdomen)
What kind of muscle is the lateral rectus?
The lateral rectus muscle is a muscle in the orbit. It is one of six extraocular muscles that control the movements of the eye and the only muscle innervated by the abducens nerve, cranial nerve VI.
Where is the lateral rectus located in the eye?
The lateral rectus muscle arises from the common tendinous ring and runs anteriorly across the lateral part of the orbit to insert at the lateral side of the eyeball. Like other straight muscles, the lateral rectus is named by its position within the orbit relative to the eyeball.
How does the abducens nerve affect the lateral rectus?
Lateral rectus. This nerve innervates some of the other muscles in the eye’s orbit. Should the abducens nerve cease to function properly, double vision could develop, as the medial rectus would begin to work unopposed. If the lateral rectus muscle itself sustains damage, a person’s eyesight could suffer as a result.
What causes paralysis of the lateral rectus muscle?
Damage to the abducens nerve (CN VI) can result in paralysis of the lateral rectus muscle. This condition is called abducens nerve palsy. This condition can occur from an expanding lesion such as a tumour or a cyst that compresses the abducens nerve itself or its nucleus.