osteology and joints Flashcards
blood cells are produced by
bone marrow
what serve as a mineral storage area
bones
how many bones in body
206
what are the two sections bones are divided in
Axial skeleton
Bones that support and protect the organs of the
head neck and trunk
Appendicular skeleton
Bones that anchor the appendages to the axial
skeleton
the skull sternum ribs and vertebral column are part of what
axial skeleton
The upper
extremities
The lower extremities
The shoulder girdle
The pelvic girdle
appendicular skeleton
bone forming cells
osteoblasts
resorb or break down bone
osteoclasts
mature bone cells
osteocytes
Dense bone that
forms the outer
shell of all bones
(80% of bone)
Leads to greater
strength and
rigidity
compact bone
Less dense than compact bone
Consists of spicules of bone enclosing cavities
containing blood-forming cells
Most bone contains both kinds of bone, and are
eventually classified by shape
spongy bone
know 22 bones !!!!
Cranium (skull)
Mandible (jaw)
Sternum
Ribs
llium (largest upper most part of hip)
sacrum
Pubis
Carpals
Metacarpals
Phalanges
Tarsals
Metatarsals
Phalanges
Clavicle
Scapula
Humerus
Radius
Ulna
Femur
Patella
Tibia
Fiibula
describe long bone
Longer than they are wide
Long shaft, with two bulky ends
Primarily compact bone, with
some spongy at the ends
Humerus and femu
describe short bone
Cuboidal- vertical and
horizontal dimensions
roughly equal
Primarily spongy bone,
with a thin outer layer of
compact bone
Bones of the wrist and
ankle
describe flat bone
Thin, flat sheets
Two compact bone plates separated by spongy
bone
Bones of the skull
Skull and sternum
describe irregular. bones
Bones that don’t fit into the above three
categories
Usually spongy bone covered in small compact
sheath
Bones of the face and vertebra and pelvic