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AN31.1-5 | Introduction to Orbit
Learning Objectives
- Describe and identify the extraocular muscles — their attachments, nerve supply, and actions (AN31.1)
- Describe the nerves and vessels within the orbit — origin, course, and branches (AN31.2)
- Explain the anatomical basis of Horner's syndrome — the sympathetic pathway and clinical signs (AN31.3)
- Describe the components of the lacrimal apparatus and the pathway of tear drainage (AN31.4)
- Explain the anatomical basis of oculomotor, trochlear, and abducent nerve palsies and strabismus (AN31.5)
INSTRUCTIONS
Work through the blocks in order. Complete the micro-quiz after the main content before checking answers. Use your atlas (Gray's or BD Chaurasia) to visualise the orbit as you read.
References
- Gray's Anatomy for Students (Drake et al.) — Head and Neck: Orbit (Textbook)
- BD Chaurasia's Human Anatomy Vol. 3 — Head, Neck & Brain (Textbook)
- Snell's Clinical Neuroanatomy — Cranial Nerves III, IV, VI (Textbook)
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