Articulatory System Anatomy

The bones of the skill are divided into the ____ skeleton and ___

facial, cranium

The ______ ______ forms framework for organs of mastication, speech, respiration, and muscles of facial expression

facial skeleton

The ____ houses and protects the brain

cranium

The _____ is the only movable bone in the facial skeleton

mandible

Maxilla

Zygomatic process

Frontal process

Palatine bone

Alveolar process

Nasal bones

Lacrimal bones

Zygomatic bones

Zygomatic arch

Inferior nasal concha

Vomer

inferior half of bony nasal septum

Facial skeleton bones

maxilla, nasal bones, lacrimal bones, palatine, zygomatic bones, inferior nasal concha, and vomer

What are the cranial bones of the skull?

temporal, parietal, occipital, and frontal

Frontal bone

forms the anterior part of brain case
vertical plate contributes to forehead
horizontal plate contributes to roof of orbit and nasal cavities

The frontal bone has a ____ notch that articulates with the ethmoid bone

ethmoid

Parietal bone

forms most of the rounded roof of the cranium

Occipital bone

articulates with the vertebral column at the occipital condyles

Occipital condyles

Temporal bones

paired bones forming most of the lateral base and sides of brain case

each bone has 3 parts: squamos, petrous, and tympanic part

Ethmoid

cranial bone but also contributes to the facial skeleton
hangs down from the ethmoid notch of frontal bone between orbital plates of frontal bone
contributes to the: walls of orbit, lateral walls of nasal cavity, and bony nasal septum

Sphenoid bone

located at the base of the skull, behind the ethmoid and in front of the foramen magnum
consists of: body, lesser wings, greater wings, and pterygoid plates

The ____ and _____ _____ have processes for muscular attachment

sphenoid and temporal bones

The ____ is shaped by the frontal, ethmoid, sphenoid bones of the cranium and the lacrimal, maxilla, and zygomatic bones of the facial skeleton

orbit