7.4 The Skull Flashcards
How many bones does the skull contain
22, not including the bones f the middle ears
How many cranial bones are there? Name them
8 cranial bones, which are frontal bone, 2 Parital bone, Occipital bone, Splenoid bone, Ethmoid bone, Two temporal bones.
Does the Temporal Bone have 1 bone or two
The temporal bone has 2 bones, one on both sides of the head
The Temporal Bone and _____ belong together
Zygomatic Process
The Zygomatic Bone and _______belong together
Temporal Process
A socket like______, is located Inferior posterior of the Zygomatic process of each temporal bone?
Mandibular Fossa
The mandibular fossa and articular tubercle
articulate with the mandible
To form the TMJ
The Petrous Portion is connected to which Cranial Bone?
Temporal Bone
The Petrous Portion hosts the ?
Internal and middle ear?
Which foremen does the Occipital bone hold
Foramen Magnum
In the Occipital condyles which part of the vertebrae, helps you nod your head yes
articulate with depressions on the first cervical
vertebra (atlas) to form the atlanto-occipital joint, which allows you to
nod your head “yes.”
Which part of the occipital bone can you feel
External occipital
protuberance
Which bones form the posterior, lateral portion of the cranium?
Posterior is the Occipital bone
Lateral is the temporal bone
- Which following types of bone is the occipital bone?
a) Longbone
b) Shortbone
c) Flatbone
d) Irregularbone
e) Sesamoidbone
Flat bones
Are bones for protection.
They also hold ribs and sturnum
Which bone lies at the middle of the base of the skull?
Sphenoid Bone
What part of the ethmoid bone forms the superior part of the nasal septum? The
medial walls of the orbits
The Perpendicular plate
The Lateral masses hold the medial walls of the orbits
Which part of the Sella Turcica houses of the sphenoid bone. houses the Pituitary gland
The middle section called Hypophysal Fossa
Which part of the Ethmoid bone contains the nasal septum
The superior portion of the Ethmoid bone, Which divides the nasal cavity into left and right sides.
What is the sphenoid Bone referred to as?
Keystone because it articulates with all other bones in the cranium
Which bone lies at the middle of the base of the skull?
Sphenoid Bone
