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krissy
anatomy
24 cards·by kpecot
bone
compact (cortical) bone
is hard, dense bone tissue found immediately deep to the periosteum
spongy (cancellous) bone
a spone and consists of a latticework - type structure with tiny bone spicules called
trabeculae
osteon
repeating, densely, packed subunits
lamellae
are concentric rings of bone matrix
Central (Haversian) canal
contains blood vessels and nerves and is lined with a connective tissue membrane called the
endosteum
Perforating (Volkmann's
lie perpendicular to the osteon and carry blood vessels into the bone from the periosteum
Lacunae
contain mature osteoblasts called osteocytes
Osteocytes
monitor and maintain the bone matrix
Canaliculi
neighboring lacunae and osteocytes are connected to each other by tiny canals
Periosteum
is composed of dense irregular collagenous connective tissue richly supplied with blood
vessels
Endosteum
an inner layer of osteoblasts, which secrete bone matrix, and osteoclasts, which degrade
bone
Lone bone
are longer than they are wide and include the bones of the upper and lower extramities
excluding the ankle
Short bone
are about as long as they are wide this bone of the wrist and the ankle are short bones
Flat bone
are shaped exactly as they're named - they are flat, (include the ribs, sternum, the clavcle,
centain skull bones, and the bonesof the pelvi
Irregular bone
are those shape doesn't fit into any of the other classes
Sesamoid bone
are roughly oval-shaped bones located within tendons
Sutural bone
are generally small bones located between the flat bones of the skull
Diaphysis
is the shaft of the long bone
Epiphysis
the ends of the long bone
Epiphyseal plate/line
a band of hyaline cartilage from which long bones grow in length
Medullary cavity
thick collar of compact bone surrounding a hollow area
Bone marrow
two type: red and yellow
redbone marrow
produces blood cwlls
yellow bone marrow
is composed primarily of a adipose tissue