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Ch.6 Skeletal System

Skeletal System

QuestionAnswer
red marrow specialized tissue that makes blood cells
osteocyte bone cell
endosteum membrane lining the medullary cavity
periosteum membrane covering the outer surface of the bone
epiphysis enlarged end of a long bone
diaphysis the length of the long bone; bone shaft
medullary cavity center of the diaphysis; filled with yellow bone marrow
lacunae tiny chambers where osteocytes are found
canaliculi tiny canals that join osteocytes to each other and the central canal
central canal spaces running the length of the bone that allow blood vessels and nerves to penetrate the bone matrix
yellow marrow high in fat content; found inside the medullary cavity
hematopoiesis formation of blood; occurs in the red marrow
fracture a break in a bone
simple not breaking the skin
compound breaking the skin
complete bone is broken in 2 parts (all the way through)
partial does not occur through the thickness of the bone
transverse fracture occurring perpendicular to the bone; at a right angle
linear fracture occurring in line with the bone; vertically
oblique fracture occurring diagonally across the bone
greenstick fracture on outer arc of bone due to bending
compacted/impacted fracture occurring when broken ends are smashed into each other
comminuted fracture with multiple bone fragments due to high impact
spiral fracture due to twisting of the bone
segmented fracture with a single piece broken or separated from the rest of the bone
compression crush fracture due to vertical force such as a fall
epiphyseal disk the growth plate, the region of cartilage at the ends of long bones in children and adolescents
female pelvis is wider, shorter , and has a more broad and rounded opening
male pelvis is narrower, taller, and has a funnel or heart shaped opening
compact bone dense bone with a solid matrix; type of bone surrounding the medullary cavity
spongy bone porous bone filled with red bone marrow
Created by: Mrs. Meeks SHS
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