Indentify the more inferior contents of the orbit.
- Identify the
optic and
nasociliary nerves and the
ophthalmic artery. (G 7.33B;N 86;Gl 35.12B) Attempt to identify the
long ciliary,
anterior ethmoidal
and
infratrochlear nerves. The anterior ethmoidal and infratrochlear nerves are positioned between the superior oblique and medial rectus muscles.
Important Relationship
- The nasociliary nerve passes directly superior to the optic nerve.
- The nasociliary nerve (anterior ethmoidal and infratrochlear branches) passes directly superior to the medial rectus muscle and directly inferior to the superior oblique muscle.
- The ophthalmic artery passes inferior, lateral and superior to the optic nerve.
- Identify the medial and lateral rectus muscles. (G 7.33B;N 84;Gl 35.2B) Identify the abducens nerve entering the proximal medial aspect of the lateral rectus muscle.
- Identify the inferior rectus muscle and the inferior ramus of the oculomotor nerve. (G 7.33B;N 86;Gl 35.5)
