Flashcards in The Orbit Deck (19):
1
What term is used to identify the periosteum of the orbit?
Periorbita
2
What term is used to identify the periosteum of the cranium?
Pericranium
3
What term is used to identify the periosteum of the cranial vault?
Endocranium
4
What are the bones forming the margins of the orbit?
- frontal
- maxillary
- zygomatic
5
What landmarks form the apex of the orbit?
Convergence of the superior orbital fissure and inferior orbital fissure
6
What bones form the superior wall of the orbit?
- sphenoid
- frontal
7
What opening is located along the superior wall of the orbit?
Optic canal
8
What are the contents of the optic canal?
- optic nerve
-ophthalmic artery
9
What bones form the medial wall of the orbit?
- ethmoid
- frontal
- lacrimal
- sphenoid
10
What are the openings located along the medial wall of the orbit?
- anterior ethmoid foramen
- posterior ethmoid foramen
11
What is the name given to the medial wall of the orbit?
Lamina papyracea
12
What features may be observed on the medial wall of the orbit?
- lacrimal groove
- fossa for the lacrimal sac
- anterior ethmoid foramen
- posterior ethmoid foramen
13
What bones form the lateral wall of the orbit?
- sphenoid
- zygomatic
14
What opening is located along the lateral wall of the orbit?
Superior orbital fissure
15
What are the contents of the superior orbital fissure?
- oculomotor cranial nerve
- trochlear cranial nerve
- abducent/abducens cranial nerve
- ophthalmic division of the trigeminal cranial nerve
- ophthalmic veins
16
What bones form the inferior wall of the orbit?
- maxillary
- palatine
- zygomatic
17
What opening is located along the inferior wall of the orbit?
Inferior orbital fissure
18
What is contained in the inferior orbital fissure?
Maxillary division of trigeminal nerve
19