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Human Skull – 22 bones
2 parts:
Cranial Bones (8)
Frontal (1) – forehead & upper eye orbits
Parietal (2) – sides & roof of cranium
Temporal (2) – sides & floor of cranium
Cranial Bones
Sphenoid (1) base & sides of cranium, parts of orbits
Ethmoid (1) – walls of nasal cavities,
floor of cranium, orbits
Occipital (1) – back & base of cranium
The Ethmoid Bone
Floor of Cranium
The Sphenoid Bone
Special Features of Occipital Bone
large opening for
brainstem to pass
through
rounded projections
for articulation w/1st
vertebrae
Facial Bones – 14 bones
Maxilla (2) – upper jaw,
roof of mouth;
(“keystone”)
Nasal (2) – bridge of
nose
Zygomatic (2) – cheek
bones, walls of orbits
Lacrimal (2) – medial
walls of orbits
Facial Bones - continued
conchae (2) –
walls of nasal
cavities
lower jaw (only
movable bone in
skull)
nasal
septum
Facial Bones
Special Features of Facial Bones
Mandible - mandibular condyle –articulation point w/temporal bone
coranoid process – provides
attachment for
chewing muscles
Special Features – Facial Bones
تعداد اسلایدها: 17
حجم فایل: 6.08 MB
زبان: انگلیسی
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