Bones Flashcards
Internal surface of mandible contains:
Mylohyloid ridge Sublingual fossa Submandibular fossa Genial tuberculosis Lingual foramen Retro molar triangle/pad Digastric fossa Lingula-boney surface off of mandibular foramen
The mandible is comprised of:
Body
Ramus
Alveolar process-houses mand teeth
Condylar process is located where on the mandibular?
Most posterior portion of the mandible
Condylar process neck is..
Condyle to the ramus
The Condyle process is going to articulate with..
The temporal bone and the mandibular fossa(glenoid fossa)
External surface of mandible contains:
Mental protuberance-chin
Mental foramen-separates alveolar process&body
External oblique ridge
Angle of mandible-Ramus and body
MMEA
The vertical part of the mandible is?
The ramus
What do you see on the ramus with the medial view
The mandibular foramen
What processes are on the ramus?
Coronoid process
Condyle process
Name the notches on the ramus?
Coronoid notch-forms anterior border of ramus
Mandibular notch-
Describe the lateral view of the mandible?
Relatively flat
Viscerocranium: 14 bones
Mandible Vomer 2 maxillae 2 lacrimal 2 zygomatic 2 nasal 2 palatine 2 inferior nasal conchae
Superior orbital fissure location and what runs through it?
Between greater and lesser of sphenoid wings.
Cranial nerves 3,4,5-1,6 and ophthalmic vein
Ophthalmic vein- drains muscles of eye movement
Inferior orbital fissure location and what runs through it?
Between greater wing of sphenoid and maxillae.
Nerves- branches of 5-2, infraorbital and zygomatic nerves.
Infraorbital artery and inferior ophthalmic vein.
Optic canal location and nerves?
Within the lesser wing of the sphenoid.
Cranial nerve 2 and ophthalmic artery.
Infraorbital foramen location and nerves
Inferior from orbits
On maxilla
Transmits in infraorbital nerve and direct continuation of 5-2.
Foramen ovale location and nerves
In greater wing of sphenoid
V3
“ROCS”
Foramen spinosum location and nerves
Posterior lateral to foramen ovale
Meningeal artery
“ROCS”
Foramen spinosum location and nerve
Greater wing of sphenoid
V2
“ROCS”
Optic canal location and nerve
Superior to orbital fissure
Cranial nerve 2- nerve from brain to eye ball
Sphenoid bone characteristics
Sella turcica-“saddle” pituitary gland
Greater and lesser wings
Many foramens “ROS”
Ethmoid bone characteristics
Crista galli- cockscomb- attachment site for tissues
Cribriform plate- transmits fibers of cranial nerve 1 (sense of smell-olfactory nerve)
Have sinuses
Name the notches on the ramus?
Coronoid notch-forms anterior border of ramus
Mandibular notch-
Describe the lateral view of the mandible?
Relatively flat
Viscerocranium: 14 bones
Mandible Vomer 2 maxillae 2 lacrimal 2 zygomatic 2 nasal 2 palatine 2 inferior nasal conchae
Superior orbital fissure location and what runs through it?
Between greater and lesser of sphenoid wings.
Cranial nerves 3,4,5-1,6 and ophthalmic vein
Ophthalmic vein- drains muscles of eye movement
Inferior orbital fissure location and what runs through it?
Between greater wing of sphenoid and maxillae.
Nerves- branches of 5-2, infraorbital and zygomatic nerves.
Infraorbital artery and inferior ophthalmic vein.
Optic canal location and nerves?
Within the lesser wing of the sphenoid.
Cranial nerve 2 and ophthalmic artery.
Infraorbital foramen location and nerves
Inferior from orbits
On maxilla
Transmits in infraorbital nerve and direct continuation of 5-2.
Pterygoid process- sphenoid bone
Larger projections - one bone
Medial and lateral plates
Pterygoid fossa(depression)
Hamulus- most inferior extension of the medial pterygoid plate
Attachment of muscles
Mandibular fossa
Large depression aka glenoid fossa
Where the mandible meets the sphenoid bone
Occipital condyles
Articulation with 1st cervical vertebrae
Anteriolateral of foramen magnum
Hard palate formed by
2 palatine processes of the maxilla
2 horizontal plates of the palatine bones
Sutures
Median palatine-joins palate bones
Transverse palatine-joins maxilla and palate
Intermaxillary-
Hard palate foramina
Incisive foramen- nasopalatine nerve
Greater palatine- greater palatine nerve
Lesser palatine- lesser palatine nerve
Infraorbital foramen location and nerve
Maxilla
The infraorbital nerve
direct continuation of V2
Nasal cavity characteristics
Bounded by:
Piriform aperture- large opening that nose covers, bony rim of nasal cavity.
Nasal bones superiority
Maxilla create lateral and inferior walls.
Nasal septum is composed of
Ethmoid- anterior/superior
Vomer- post/inferior
Nasal septum cartilage
Pterion-
Asterion-
Weakest part of the skull, but joins lots of muscles
Strong area on skull.
Temporal, parietal and occipital meet
Styloid process
Long slender projection on temporal bone
Temporal fossa
Slight depression, larger than pterion
Covers more than just temporal bone
Zygomatic characteristics:
What does it form?
Where located?
Articulates with?
Joined to temporal bone by?
Form prominence of cheek
Lateral wall of orbit
Frontal, maxillary, sphenoid and temporal
The temporozygomatic suture (cheek arch)
Sinuses: air filled cavities
Where are they located
(Always named after the bone the are in)
Frontal- superior to eyes
Ethmoid- irregular cells
Sphenoid- posterior to orbits, superior to nasal
Maxillary- by cheeks
Most commonly infected area
Foramen lacerum
Occluded with cartilage.
By foramen ovale
No nerve
Carotid canal “ROCS”
Internal carotid arteries
In temporal bone
Stylomastoid foramen
Location and nerve
Temporal bone
In between styloid and mastoid
Cranial nerve 7. (Facial expressions)
Jugular foramen
Nerves?
Large opening
Internal jugular vein, 9, 10, 11
Hypoglossal canal
Location and nerve
On occipital bone
Cranial nerve 12
Foramen magnum
Location and nerves
Occipital bone
Spinal cord, vertebral arteries
Nerve 11
Maxilla articulates with
Zygomatic
Greater wing of sphenoid
Nasal
Frontal
Maxilla 4 processes?
Zygomatic
2 alveolar
Palatine
Frontal
Maxillae- medial view
Maxillary sinus- infected easily
Nasal cavity-
Horizontal palatine process-make up hard palate
Maxillae lateral view
Canine eminence and fossa-where Max canines are
Infraorbital foramen-below orbit on max bone
Anterior nasal spine- on max bone by nose
Maxillary tuberosity-in mouth, post to last molar
Alveolar process-what the teeth sit in
