Anatomy study note · Head and neck

Superior rectus

An extraocular muscle that raises the cornea and turns it medially.

Key points

• Tendinous ring → top of the eyeball.
• CN III.
• Up and in; test: look out, then up.
• Oculomotor muscles: somitomeres 1–2.
• Skeletal muscle: multinucleated, peripheral nuclei, striated.
• Epimysium → perimysium → endomysium.

The full note in the atlas also covers

Origin · Insertion · Action · Nerve supply · Histology · Development

Sign in free to see it on the 3D model, read the full note and practise questions on it.

Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 12, PDF pp. 1574–1575, 1589–1593
• Inderbir Singh’s Human Embryology, ch. 7, PDF p. 109; ch. 9, PDF p. 126
• BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144

More from the head and neck

• Superior temporal gyrus
• Teeth
• Temporal bone
• Temporal lobe
• Temporalis
• Temporomandibular joint
• Tensor veli palatini
• Thalamus
• Thyroarytenoid and vocalis
• Thyrohyoid
• Thyroid cartilage
• Thyroid gland

Privacy policy · Designed by DATXOC LLC.