Skeletal organization Wish List

concentric lamellae

concentric bony layers around central canals

osteon (Haversian systems)

rings of concentric thin plates (lamellae) - trees of bone

central (Haversian) canals

central channel containing blood vessels, lymphatics & nerves

Lacunae

small spaces between lamellae

perforating (volkmann’s) canals

channels the pierce the central canals horizontally. Contain neurovascular bundles

interstitial lamellae

remnants of lamellae not circling the central canal

canliculi

small diffusion channels for nutrient and gas exchange

foramen

an opening, hole, or passage, especially in a bone. ex. optic ___, ____ magnum, mental _____ina

Fissure

crack, slit, groove or depression in a bone that often contains nerves and blood vessels. Both inferior and superior orbital ___

Meatus/canal

tube like passageway or opening in a bone. Ex. external auditory ______

fossa

a depression or hollow in a bone. Ex. mandibular ____, glenoid _____

process

a projection or outgrowth of tissue from a larger body. ex. styloid ___, spinous ___, coronoid ____.

tubercle

a small, rounded protuberance on a bone. Ex. rib ____, conoid ____ of clavicle.

facet

a smooth, flat surface on a bone that forms a joint with another flat bone. Ex. Articular facets (vertebra)

angle

a sharp, bony projection or point on a bone. Often used as a reference point for anatomical description where different parts of the bone meet at a distinct point. ex. mandibular ___, scapular ____

condyle

a rounded, articular prominence found at the end of certain bones. Provides a smooth surface for articulation. ex. occipital ___, mandibular ____ (condylar process)

spine

anterior superior illac spine (ASIS), Anterior inferior iliac spine (AIIS)

tuberosity

a prominent, rounded projection on the surface of a bone. ex. ischial ___, illac _____