Chapter 3 Flashcards
Process
Any boney prominence
Condyle
An oval prominence usually, part of a joint.
Tuberosity
A rough prominence of bone
Cornu
Horn like prominence
Tubercle
Raised elevation
Crest
Raised edge of bone
Ridge
Raised margin
Spine
A blunt or sharp pointed projection
Notch
Indentation
Sulcus
A shallow depression around the tooth
Fossa
Deeper depression
Foramen
Small window like,where nerves go through
Canal
Long narrow opening in the bone
Fissure
Narrow cleft like uneven opening
Suture
A union of bones in the skull
Joint
Union of bones
Cranial bones
2 pairs, 4 single
-parietal
-temporal
-ethmoid
-sphenoid
-frontal
-occipital
Temporal bones contain
- Fossa for the TMJ (mandibular fossa)
- Mastoid process
-behind the ear, where sternocleidomastoid attaches - Styloid Process
- below the ear, attachment for muscles and ligaments if the tongue
Ethmoid bone contains
- Cribriform plate
- housed olfactory nerves, so we can smell
- Crista Galli
- Wedged-shaped vertical midline plate - Superior and middle nasal Conchae
- Protrusion on the lateral sides
Sphenoid bone contains
- Foramen Rotundum
- Foramen Ovale
- Foramen Spinosum
- Foramen Lacerum
- Superior orbital Fissure
- Hamulus (Hook shaped)
Frontal Bone contains
- Lacrimal fossa
- contains lacrimal duct
Occipital bone contains
occipital condyles
- curved projection
Coronal suture
frontal and parietal
Frontonasal suture
frontal and nasal bones
Lambdoidal suture
occipital and parietal
median palatine suture
Anterior part= maxilla
Posterior part= palatine
Sagittal suture
parietal bones
Facial Bones
14 bones
6 pairs, 2 single
Maxillae
Mandible
Inferior nasal Conche
nasal
vomer
Lacrimal
zygomatic
palatine
Maxillae bone forms
- lower rim of the orbit
- Border of the nasal cavity
- Maxillary sinus
- Cheeks
- Hard palate
Only free moving bone of the jaw
Mandible
Mandible contains
- body
- ramus
- Coronoid Process
- Coronoid notch
- Exterior oblique ridge
- Interior oblique ridge
- Condylar process. ( neck of condyle + Condyle)
- deals with the TMJ
- Mandibular notch (sigmoid notch)
Inferior nasal conchae
Project from maxilla into the nasal bones
composed of fragile, thin, and spongy bone curved onto itself like a scroll
Nasal bones
Small rectangular bones, that fuse to form the bridge of the nose
Vomer
Single, flat trapezoid shape
posterior part of the septum
Lacrimal bones
smallest and most fragile facial bones
contains:
Nasolacrimal ducts
-where lacrimal and the maxilla come together
zygomatic
Forms:
- cheekbones
- wall and floor of the orbits
3 Processes
- Frontal
-Temporal
- Maxillary
Palatine
Not strictly facial bones
L shaped
2 Plates:
- vertical- forms the lateral walls of the nasal cavity and orbit
- Horizontal- forms the posterior part of the hard palate
Atlas
first cervical vertebrae
Attachment for occipital condyles
Axis
second cervical vertebrae
serves as attachment for muscles
Hyoid bone
- suspended in the neck
- superior to thyroid cartilage
- base of the tongue and larynx
-gives ability to talk and chew - U shapes
