Extraocular muscles - Wikipedia
网页The extraocular muscles, or extrinsic ocular muscles, are the seven extrinsic muscles of the eye in humans and other animals. [1] Six of the extraocular muscles, the four recti muscles, and the superior and inferior oblique muscles , control movement of the eye .
The Extraocular Muscles - The Eyelid - Eye Movement
网页2022年12月22日 · 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.
Extraocular Muscles - EyeWiki
网页Extraocular muscles are the most specialized skeletal muscles in the human body. These are broadly divided into voluntary and involuntary muscles. The voluntary muscles include seven extraocular muscles that control the movements of the eye and eyelids, and are important for binocular single vision.
Extraocular muscles: Anatomy and movements - Kenhub
网页2023年10月30日 · Extraocular muscles are also referred to as the extrinsic (arising externally) or muscles of the orbit. There are 6 of these extraocular muscles that control eye movement (cows only have 4 of these), and one muscle that controls eyelid elevation.
Extraocular Muscle Anatomy — Ophthalmology Review
网页2019年7月9日 · Extraocular Muscle Structure Introductory Concepts. Extraocular muscles need fast-twitch fibers to allow for saccades. Extraocular muscles need to maintain sustained contraction with resistance to fatigue to allow for …
Extraocular movements explained - EyeGuru
网页The primary actions of the extraocular muscles make sense. Superior rectus moves the eye up. Inferior rectus moves the eye down. Etcetera etcetera. This article will teach you how to logically think through the secondary and tertiary actions and why we check extraocular motility in an “H” pattern.
Extraocular Muscles | Eye Movement - Geeky Medics
网页2020年5月10日 · An overview of the anatomy of the extraocular muscles (EOM), including their attachments, innervation and actions. We also discuss how cranial nerve palsy can impact extraocular muscle function.
Anatomy, Head and Neck, Eye Extraocular Muscles
网页2022年10月13日 · Extraocular muscles have a large ratio of nerve fibers to skeletal muscle fibers. The ratio is 1:3 to 1:5 compared to other skeletal muscles, which are 1:50 to 1:125. Extraocular muscles are a specialized skeletal muscle form with various fiber types, including slow tonic types, which resist fatigue, and saccadic (rapid) muscle fibers.
Human eye - Extraocular Muscles | Britannica
网页2024年8月18日 · Human eye - Extraocular Muscles: Six muscles outside the eye govern its movements. These muscles are the four rectus muscles—the inferior, medial, lateral, and superior recti—and the superior and inferior oblique muscles.
Extraocular Muscles - Ophthalmology Training
网页Extraocular Muscles. The six extraocular muscles of the orbit involved in eye movements are the superior, inferior, medial and lateral rectus muscles, and the superior and inferior oblique muscles. The four rectus muscles arise from a thickening of the periosteum at the orbital apex known as the common tendinous ring (annulus of Zinn).