5B Notes about Structure Sphenoid Bone

Question 1

Sphenoid Bone: Grater Wings

Posterior portion of the sphenoid bone when looking into the skull from ____ ____. looks like _____ _____

Answer 1

top down

butterfly wings

Question 1

Sphenoid Bone: Grater Wings

______portion of the sphenoid bone when looking into the skull from ____ ____. looks like _____ _____

Answer 1

Posterior
top down
butterfly wings

Question 2

Sphenoid Bone Lesser Wings: ____ portion of the sphenoid bone when looking at the skull from ___ ____

Answer 2

anterior

top down

Question 3

Sphenoid Bone: Stella Turcica: A depression in the ____ part of the body of the Sphenoid bone. The deepest part of the Stella Turcica is called the ______ _______ where the pituitary gland sits.

Answer 3

central

hypophyseal fossa

Question 4

Stella Turcica also means =

Answer 4

Turkish saddle

Question 5

Stella Turcica also means =

Answer 5

Turkish saddle

Question 6

Sphenoid bone: Optic Foramen
openings in the sphenoid bone if you remove the cranial bones superior to the sphenoid and look in to the skull you may note the shape of the sphenoid bone as a ____ shaped bone. the _____ foramina would appear as the “eyes” of the ______.
The structre that passes through the optic foramina are the _____- nerves (_____ ____ __)
this pathway processes ______ information from the ____ to the_____

Answer 6

butterfly
optic
butterfly
optic nerves (cranial nerve II)
visual 
eyes 
brain

Question 7

Sphenoid Bone: Superior Orbital Fissure
Best viewed through the ____ of the ____
Important structures passing through here
CN __ __ __ ___

Answer 7

orbit of the eye

V, III, IV, VI

Question 8

Sphenoid Bone: Superior Orbital Fissure
CN V carry ____ information about ____ and ____ from the skin of the face and scalp towards the _____ _____ of the brain
CN III carrying _____ ____ as part of the pathway to 4 of the 6 ____ muscles for its movement.
CN IV carrying _____ ____ as part of the pathway of 1 of 6 ____ muscles for its movement
CN VI carrying _____ ____ as part of the pathway of 1 of 6 ____ muscles for its movement

Answer 8

sensory, touch, temp
sensory cortex

motor neurons, eye

motor neurons, eye

motor neurons, eye

Question 9

Sphenoid Bone: Superior Orbital Fissure
What muscles do the following motor neurons control?
CN III

Answer 9

Medial Rectus, Superior rectus, inferior rectus, and inferior oblique muscles.

Question 10

Sphenoid Bone: Superior Orbital Fissure
What muscles do the following motor neurons control?
CN IV
Cn VI

Answer 10

IV: inferior oblique muscle
VI: lateral rectus muscle

Question 11

Sphenoid bone: Forman Rotundum
Sensory branches of CN ___ travel through here, part of the pathway that carries sensory information about _____ and _____form the skin of the face and scalp senfing its info to the _______ cortex of the brain

Answer 11

V
touch and temperature
somatosensory

Question 12

Sphenoid Bone: Foramen Ovale
Sensory Branches of CN ___ travel trough here.
Carries sensory information about______ and _____ from the skin of the face to the _______ cortex of the brain
Motor branches of CN ___ also travel trough here to the ____ cortex of the brain to the muscles of ________.
including the ______ and temporalis muscles

Answer 12

V
touch and temperature 
somatosensory 
V
motor
Mastication 
masseter

Question 13

Sphenoid Bone: Foramen spinosum

Branches of the CN ___ and middle _____ artery travel through here.

Answer 13

V

meningeal