Appendicular Skeleton ch.7 Flashcards
Skull has how many bones
8 cranial bones, 14 facial bones
What are the cranial bones of the skull
1 frontal bone, 1 Occipital, 1 sphenoid, 1 ethmoid 2 temporal, 2 Parietal
What are the three fossae of the cranium
Anterior fossa, middle fossa, posterior fossa
Anterior Fossa contains what
front lobes
Middle Cranial Fossa contains what
Temporal lobes and pituitary gland
Posterior cranial Fossa contains
cerebellum pons and medulla
What are the facial bones of the skull
Mandible, Vomer (behind top jaw), 2 Maxillae (top jaw), 2 palatine bones (sides of top jaw). 2 nasal bones, 2 nasal conchae, 2 zygomatic bones, and Lacrimal bones.
Where is the mandibular condyle
it is the end of the mandible that sits into the mandibular fossa
Mandibular Fossa
above the Temporomandibular joint,
Zygomatic Process
is behind the cheek bone above mandibles
Zygomatic arch
under the zygomatic process
Ear hole name
External Acoustic meatus
Mastoid process
bumps under the ear
Styloid process
pointy bones under skull by ear
what is the name of the joint where the the mandibles and temporal bone meet
temporomandibular joint
Petrous region
located in the bottom of the middle fossae
Sagittal Suture
located between the two parietal bones. Line running down the middle of your skull
Coronal Suture
Separates the parietal bones from the frontal bones
External occipital protuberance
raised point at the back of your skull
Superior nuchal line
part of the external occipital protuberance, also has inferior nuchal line
occipital condyles
where the head rests on the cranial vertebrae
What are the cavities located on the sphenoid bone
Foramen ovale, lacerum, spinosum,
Cavities in the sphenoid bone
sphenoid sinus cavity
Superior gap in the sphenoid bone
Superior orbital fissure
Small hole in the sphenoid bone
foramen rotundum
Part of the ethmoid bone that can be seen within the frontal one
Crista Galli
the two things on the ethmoid bone, opposite of the crista galli
middle nasal concha
midline of the ethmoid bone
Perpendicular plate
Lateral parts of the ethmoid bone
Lateral masses
Part of Maxillary bone where teeth attach
Alveolar process
Where the zygomatic process meets the zygomatic bone
Temporal process of the zygomatic bone
Ends of the mandible
Ramus
Part before the ramus in the mandible
body
holes in the eyebrows
Supraorbital foramen
what are the bones that make up the walls of the orbit
Sphenoid, ethmoid, frontal, zygomatic, and Maxilla
What are the bones that make the nasal septum
Perpendicular plate of ethmoid bone, vomer, frontal bone
what makes the bottom of the nasal cavity
aka hard palate. palatine plate of the maxilla, and horizontal plate of palatine bone
Suture that joins temporal bone to parietal
Squamous Suture
Suture that joins occipital bone to parietal
lambdoid suture
Where are there sinus cavities
Frontal sinus, Sphenoid sinus, ethmoid sinus, Maxillary sinus
What are the birth fontanels
Posterior fontanel, Anterior fontanel, anterolateral fontanel (above temporal bone) Posterolateral fontanel, (behind temporal bone)
7 highest vertebrae
Cervical vertebrae
middle 12 vertebrae
thoracic vertebrae
5 lower vertebrae
lumbar vertebrae
hole in a vertebra
vertebra foramen
Spinous process
part that sticks out that you can touch
part where other vertebra articulate onto
superior articular facet
part where ribs articulate onto the vertebra
superior demi facet
part formed with vertebrae articulating with each other
intravertebral foramen
Name of first vertebra where occipital condyles rests
atlus bone
part that connects with the occipital condyle
lateral masses, also posterior and anterior arch
foramen only present on cervical vetebra
transverse foramen
How to identify thoracic vertebra
the spinous process tilts sharply downwards and NOT biped
sacrum
5 fused vertebrae
part of where the lumbar vertebra meets with the sacrum
superior articular facet
