Sphenoid bone

Question 1

Sphenoid bone articulates with what ?

Answer 1

o articulates will all cranial bones and palatine, zygomatic, maxilla and vomer bones of facial complex

Question 2

Shape ?

Answer 2

shaped like a giant bat with wing extending from one side to the other across floor of cranium

Question 3

o sella turcica

Answer 3

central prominence on superior surface of sphenoid bone

• cradles pituitary gland

Question 4

o greater wings of sphenoid bone

Answer 4

extend laterally from sella turcica and immediately anterior to temporal bone

Question 5

2 parts of greater wings of sphenoid bone

Answer 5

• foramen rotundum – medially and anteriorly located
• foramen ovale – laterally and posteriorly located
• carry blood vessels and nerves to structures of orbit, face and jaws

Question 6

o lesser wings of sphenoid bone

Answer 6

ridge and wings anterior to sella turcica form that articulates with frontal bone

Question 7

• optic groove

Answer 7

transverse groove with optic canals carries optic nerve from eyes to brain

Question 8

• superior orbital fissure

Answer 8

inferior surface forming part of orbit and passageway for blood vessels and nerves

Question 9

o pterygoid processes

Answer 9

vertical projections from inferior surface between greater and lesser wings
• medial and lateral plates attachment site for muscles that help move the mandible and soft palate