Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

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Dissection of left orbit from an anterior approach

Muscle fibers near medial angle of eyelids

Note that no fibers attach to the anterior surface of the medial palpebral ligament.

1 .	Infratrochlear nerve
2 .	Muscle fibers which joined frontalis muscle
3 .	Periosteum covering nasal bone
4 .	Area of origin of superior part of orbicularis oculi muscle
5 .	Area of origin of inferior part of orbicularis oculi muscle
6 .	Lacrimal part orbicularis oculi muscle
7 .	Medial palpebral ligament
8 .	Angular head of levator labii superioris muscle (cut across)
9 .	Frontal nerve
10 .	Corrugator supercilii muscle
11 .	Supratrochlear nerve
12 .	Orbital septum (note its downward extension deep to the orbicularis muscle toward an attachment on the posterior lacrimal crest)
13 .	Aponeurosis of levator palpebrae superioris muscle (upper pointer, cutaneous insertion; lower pointer, tarsal insertion)
14 .	Superior tarsus
15 .	Middle palpebral artery
16 .	Superior palpebral nerves
17 .	Lacrimal duct
18 .	Lacrimal lake
19 .	Medial ocular angle