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QUESTIONS & ANSWERS
Diaphysis. ANSWER -The shaft or central part of a long bone
Epiphysis. ANSWER -Rounded End of Long Bone at its Joint
Articular Cartilage. ANSWER -Smooth white tissue that covers the end of bones
when they form joints
Epiphyseal Plate/Line. ANSWER -A hyaline cartilage plate in the metaphysis at each
end of a long bone
Medullary Cavity. ANSWER -Central Cavity of the bone shaft where bone marrow is
stored
Compact Bone. ANSWER -( Hard outer part) Compact portion of bone that consists
largely of concentric lamellar osteons
Spongy Bone. ANSWER -A network of irregular shaped sheets and spikes of bone
found under the compact bone
Trabeculae. ANSWER -The spongy spiky open-work that makes up spongy bone
,Tuberosity (muscle/lig attatchment). ANSWER -Large Rounded Projection; may be
roughened
Crest (muscle/lig attatchment). ANSWER -Narrow Ridge of Bone, Usually
Prominent
Trochanter (muscle/lig attatchment). ANSWER -Very Large, blunt, irregularly
Shaped Process
Tubercle (muscle/lig attatchment). ANSWER -Small Rounded Projection or Process
Epicondyle (muscle/lig attatchment). ANSWER -Raised area on or above a condyle
Spine (muscle/lig attatchment). ANSWER -Sharp, Slender, often pointed Projection
Process (muscle/lig attatchment). ANSWER -Any Bony Prominence
Head (help to form joints). ANSWER -Bony expansion carried on a narrow neck
Facet (help to form joints). ANSWER -Smooth, nearly flat articular surface
Condyle (help to form joints). ANSWER -Rounded articular projection
Ramus (help to form joints). ANSWER -Arm-like bar of bone
Fossa (allow for muscle attachment). ANSWER -Shallow basinlike depression
Groove (allow for muscle attachment). ANSWER -Furrow
Meatus (passage for nerve/vessels). ANSWER -Canal like passage way
, Foramen (passage for nerve/vessels). ANSWER -Round or oval opening through a
bone
Osteon. ANSWER -A central canal and all the concentric lamelle surrounding it
Osteocyte. ANSWER -Mature Bone Cells
Central (haversian) canal. ANSWER -Runs paralel to the long axis of the bone and
carriers blood vessels, nerves, and lymphatic tissue
Concentric Lamellae. ANSWER -Concentric circles surrounding the central canal of
an osteon
Lacuna. ANSWER -Chambers
Canaliculi. ANSWER -Tiny canals radiating outward from a central canal
Perforating Canals. ANSWER -Run at right angles to the shaft and connect blood
and nerve supply of medullary cavity to central canal
Periosteum. ANSWER -A fibrous membrane covering made up of dense irregular
connective tissue (on exterior of bone)
Perforating (Sharpey's) fibers. ANSWER -blood vessels and nerves that travel
through the Periosteum and invade bone
(Ossification) 1. Proliferation Zone. ANSWER -Cartilage Cells Undergo Mitosis (B)
in image
(Ossification) 2. Hypertrophic Zone. ANSWER -Older cartilage cells enlarge (C) in
image