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Skull Bones
7.2--Skull
| Term | Definition |
|---|---|
| SKULL | CONTAINS 22 BONES. RESTS ON VERTEBRAL COLUMN. CONTAINS CRANIAL BONES AND FACIAL BONES |
| CRANIAL BONES | FORM CRANIAL CAVITY; WHICH ENCLOSES AND PROTECTS BRAIN. EIGHT BONES; HOUSES NASAL CAVITY, ORBITS, PARANASAL SINUSES, AND MIDDLE AND INNER EAR CAVITIES |
| FACIAL BONES | FORM THE FACE; FOURTEEN BONES |
| FRONTAL BONE | FOREHEAD; ROOFS OF ORBITS; MOST OF CRANIAL FLOOR |
| METOPIC SUTURE | LEFT AND RIGHT HALVES OF FRONTAL BONE BROUGHT TOGETHER; DISAPPEARS |
| FRONTAL SQUAMA | THICK SCALELIKE PLATE OF BONE ON FOREHEAD (THAT CREASE THAT PROJECTS ON FOREHEAD) |
| SUPRAORBITAL MARGIN | RIDGE ABOVE THE EYE; ROOF OF ORBIT/FLOOR OF CRANIAL CAVITY |
| SUPRAORBITAL FORAMEN | HOLE; PASSAGEWAY FOR NERVE AND ARTERY |
| SUPERORBITAL NOTCH | INCOMPLETE FORAMEN |
| FRONTAL SINUSES | EMPTY CAVITY DEEP OF FRONTAL SQUAMA |
| PARIETAL BONES | 2X; LEFT AND RIGHT. LARGE QUADRILATERAL. GREATER PORTION OF SIDES AND ROOF |
| CORONAL SUTURE | CORONAL JOINT BETWEEN TEMPORAL BONE AND CORONAL SUTURE |
| SAGITTAL SUTURE | SPLITS PARIETAL BONES |
| PARIETAL FORAMIN | HOLES IN ANTERIOR OF PARIETAL |
| LAMBOID SUTURE | BETWEEN PARIETAL AND OCCIPITAL |
| SUTURAL BONE | INTERMEDIATE TO PARIETAL BONES AND OCCIPITAL BONE |
| TEMPORAL BONES | 2X; INFERIOR AND LATERAL ASPECTS OF THE CRANIUM AND PART OF CRANIAL FLOOR |
| TEMPORAL SQUAMA | THIN, FLAT PORTION OF TEMPORAL BONE; FORMS ANTERIOR AND SUPERIOR OF TEMPLE |
| ZYGOMATIC PROCESS | ANTERIOR FROM INFERIOR PORTION OF TEMPORAL SQUAMA; FORMS JOINT WITH TEMPORAL PROCESS OF ZYGOMATIC (CHEEK) BONE = ZYGOMATIC ARCH |
| MANDIBULAR FOSSA | INFEROPOSTERIOR SURFACE OF ZYGOMATIC PROCESS; |
| ARTICULAR TUBERCLE | ANTERIOR TO MANDIBULAR FOSSA; FORMS TEMPORAL MANDIBULAR JOINT |
| MASTOID PORTION | INFEROPOSTERIOR TO EXTERNAL AUDITORY MEATUS |
| AUDITORY MEATUS | EAR CANAL |
| MASTOID PROCESS | ROUNDED PROJECTION OF MASTOID PORTION OF TEMPORAL BONE POSTERIOR AND INFERIOR TO EXTERNAL AUDITORY MEATUS; POINT OF ATTACHMENT FOR SEVERAL NECK MUSCLES |
| INTERNAL AUDITORY MEATUS | SUPRAPOSTERIOR TO AUDITORY MEATUS |
| STYLOID PROCESS | INFERIORLY FROM INTERIOR SURFACE OF TEMPORAL BONE; IN OCCIPITAL BONE |
| STYLOMASTOID FORAMEN | BETWEEN STYLOID PROCESS AND MASTOID PROCESS |
| PETROUS PORTION | PYRAMIDAL; BASE OF SKULL BETWEEN SPHENOID AND OCCIPITAL |
| CAROTID FORMAEN | CAROTID ARTERY PASSAGE WAY; IN PETROUS PROCESS |
| JUGULAR FORAMEN | POSTERIO TO CAROTID FORAMEN; ANTERIOR TO OCCIPITAL BONE |
| OCCIPITAL BONE | FORMS POSTERIOR PART AND MOST OF BASE OF CRANIUM |
| FORAMEN MAGNUM | INFERIOR PART OF BONE; MEDULLA OBLONGATA CONNECTS WITH SPINAL CORD |
| OCCIPITAL CONDYLES | 2X; ON EITHER SIDE OF FORAMEN MAGNUM |
| ATLANTO-OCCIPITAL JOINTS | OCCIPITAL CONDYLES ARTICULATE WITH ATLAS TO CREAT |
| HYPOGLOSSAL CANAL | INFEROLATERAL TO AUDITORY MEATUS |
| NUCHAL LINES | MUSCLE ATTACHMENT SITES FOR NECK MUSCLE |
| SPHENOID BONE | MIDDLE OF BASE OF SKULL; KEYSTONE--ARTICULATES WITH ALL OTHER BONES |
| SUPERIOR ORBITAL FISSURE | TRIANGULAR SLIT BETWEEN GREATER AND LESSER WINGS |
| FORAMEN ROTUNDUM | LOCATED AT JUNCTION OF ANTERIOR AND MEDIAL PARTS OF SPHENOID BONE |
| FORAMEN OVALE | OPENING IN MANDIBULAR BRANCH |
| FORAMEN SPINOSUM | POSTERIOR ANGLE OF SPHENOID |
| FORAMEN LACERUM | ANTERIORLY TO SPHENOID, POSTERIORLY BY TEMPORAL AND OCCIPITAL |
| OPTIC FORAMEN | BETWEEN BODY AND LESSER WING; ANTERIOR TO SELLA TURCICA |
| SPHENOIDAL SINUS | SUPERIOR NASAL CAVITY |
| SELLA TURICA | BONY, SADDLE-SHAPED STRUCTUREON SUPERIOR SURFACE OF BODY |
| TUBERCULUM SELLAE | ANTERIOR RIDGE OF SELLA TURCICA |
| HYPOPHYSEAL FOSSA | CCONTAINST PITUITARY GLAND |
| GREATER WINGS | LATERALLY FROM BODY |
| LESSER WINGS | SMALLER THAN GREATER WINGSL RIDGE OF BONE ANTERIOR AND SUPERIOR TO GREATER WINGS |
| PTERYGOID PROCESSES | JUT OUT IN INFERIOR ANTERIOR VIEW |
| ETHMOID BONE | ANTERIOR PART OF CRANIAL FLOOR BETWEEN 2 ORBITS; ANTERIOR TO SPENOID BONE AND POSTERIOR TO NASAL BONES. SUPPORTING STRUCTURE OF NASAL CAVITY |
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