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Bassett Collection of Stereoscopic Images of Human Anatomy

Orbital fascia

Fascia related to left eyeball, posterior view

Image #57-2

KEYWORDS: Connective tissue, Eye, Face.

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Orbital fascia
Fascia related to left eyeball, posterior view
The orbit has been sectioned in a frontal plane posterior to the eye. Fat, areolar connective tissue, nerves and blood vessels have been removed to demonstrate the fascia covering the extraordinary muscles and the eye. The fascia of the rectus muscles is thin posteriorly but becomes thick as the muscles approach the eye. It blends with the fascia of the bulb (Tenon's capsule) and, in addition, forms weblike folds (1) which extend between neighboring rectus muscles. The suspensory ligament of the eye has been described with the previous view.
1 . Upper pointer: Superior rectus muscle (retracted superiorly) Lower pointer: Weblike fold of fascia between superior and lateral rectus muscles
2 . Lacrimal nerve
3 . Lateral rectus muscle (retracted laterally)
4 . Upper pointer: Sheath of optic nerve Lower pointer: Optic nerve
5 . Subarachnoid space (spatium intervaginalium)
6 . Inferior oblique muscle
7 . Bulbar fascia
8 . Temporalis muscle
9 . Inferior rectus muscle (retracted inferiorly)
10 . Maxillary sinus
11 . Levator palpebrae superioris muscle (retracted superiorly)
12 . Anterior cranial fossa
13 . Frontal sinus
14 . Upper pointer: Superior oblique muscle Lower pointer: Infratrochlear nerve
15 . Cribriform plate ethmoid bone
16 . Medial rectus muscle
17 . Nasal septum (cut through)
18 . Medial check ligament
19 . Ethmoidal cell (fossa for lacrimal sac lies anterior to this air cell)
20 . Common nasal meatus
21 . Middle nasal concha
22 . Middle nasal meatus
23 . Inferior nasal concha
24 . Opening of nasolacrimal duct into Inferior nasal meatus