anatomy lab4

• process
• condyle
• epicondyle
• trochanter
• tuberosity
• tubercle
• crest
• spine
• head

extension of a bone away from the bone's surface

rounded eminence that articulates with a depression or fossa on another bone

raised, rounded area located above condyle

very large, roughened, raised area found on the femur

• similar to a trochanter but smaller
• roughened, raised area found on the femur

small, rounded eminence

narrow ridge of bone

sharp, slender projection

• rounded, enlarged end of a long bone
• sits atop a narrow portion of the bone called the neck

• fossa
• foramen
• meatus
• facet

• shallow depression that suaully articulates with a condyle or head of another bone
• sometimes reffered to as cavities

hole for passage of nerves, blood vessels or the spinal cord

canal-like passageway

smooth, flat area

• cranial bones and facial bones
• all skull bones except the mandible are joined by immovable interlocking articulations called sutures

immovable interlocking articulations that join bones

• frontal bone
• parietal bone
• temporal bone
• external auditory (acoustic) meatus
• mastoid process
• styloid process
• zygomatic process
• mandibular fossa
• spehnoid
• occipital bone
• foramen magnum
• occipital condyles

forms forehead and superior portion of orbit

forms a large portion of the lateral and superior aspect of the cranium on each side

inferior to the parietal bone

external ear passageway leading to the eardrum

• rounded eminence on the inferior surface, just posterior to the external auditory meatus
• serves as attachment site for neck muscles

• slender process extending downward from bottom of temporal bone
• attachment site for throat and neck muscles

• slender process extending forward form the temporal bone
• forms part of the zygomatic arch

• oval shaped depression located just anterior to the external auditory meatus
• articulates with a condyle on the lower jaw to form the temporomandibular joint

• connected to frontal bone anteriorly and temporal bone posteriorly
• forms part of the lateral side of the cranium and part of the posterior surface of orbit

forms posterior, inferior portion of the cranium

• large hole in inferior surface
• serves as a passageway for the spinal cord as it passes through the cranium to connect to the brain

• rounded eminences located on each side of the foramen magnum
• articulate with fossae on the first cervical vertebra, the atlas

• coronal
• saggital
• squamosal
• lambdoidal
• wormian bones
• fontanels

between frontal bone and each parietal bone

where parietal bones meet at the midline

junction between inferior border of the parietal bone and superior border of the sphenoid and temporal bones

joins occipital bone to both parietal bones

• small islets of bone formed within a suture
• most commonly found within the labdoidal suture

• the fetal skull at birth contains these unossified membranous areas
• they allow compression of the skull during delivery

• ethmoid bone
• sphenoid bone
• frontal bone
• temporal bone

• forms a small portion of the anterior cranial floor, roof of the nasal cavity, upper portion of the nasal septum and part of the medial aspect of the orbit
• crista galli
• cribiform plate

• vertical projection
• serves as point of attachment for the dura matter (outtermost membrane covering the brain)

• lateral to the crista galli
• contains numberous holes for passage of olfactory nerves between the nasal cavity and the brain

• bat-shaped bone.
• contributes to cranial floor, sides of the cranium and posterior orbit
• central bone of the cranial floor that connects frontal, ethmoid, temporal and occipital bones
• sella turcica, optic foramina, lesser wings, greater wings

small depression in the middle of sphenoid in which pituitary gland resides

• two small openings at the anterior, lateral edges of the sella turcica
• serves as passageway for optic nerves

• arrow, prominent ridge immediately anterior to the sella turcica
• joins sphenoid bone to frontal and ethmoid bones

• large, posterior portion of the sphenoid bone.
• joins sphenoid bone to temporal and occipital bones

forms portion of the cranial floor, anterior to the lesser wings of the sphenoid and lateral to the ethmoid

• forms portion of the cranial floor lateral to the greater wings of the sphenoid
• contains channel-like passageway that houses the inner ear (petrous portion)

• forms posterior portion of the cranial floor
• contains foramen magnum