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PNUR 101 SKELETAL SYSTEM Questions with 100% Correct Answers | Updated 2024 | Guaranteed A+
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PNUR 101 SKELETAL SYSTEM Questions with 100% Correct Answers | Updated 2024 | Guaranteed A+
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PNUR101
SKELETAL
SYSTEM
3
types
of
articulations?
-
ANS-Fibrous
(synarthrosis):
immovable
-
sutures
of
skull
Cartilaginous
(amphiarthrosis):
semi-moveable
due
to
cartilage
connection
-
between
pubic
bones,
vertebrae
Synovial
(diarthrosis):
freely
moveable,
held
together
by
ligaments,
most
common
(6
different
types)
appendicular
skeleton?
-
ANS-Upper
extremities
(shoulder
girdles,
arms,
wrists,
hands)
Lower
extremities
(hip
girdle,
legs,
ankles
and
feet)
axial
skeleton?
-
ANS-Central
portion
Skull
(cranial
and
facial
bones)
Trunk
(spinal
column,
ribs,
sternum
and
hyoid
bones)
BONE
FORMATION
and
REPAIR
-
ANS-Osteoblasts
(bone
forming
cells)
make
bone
matrix
containing
collagen
Calcium
is
deposited
within
the
matrix
(hardens)
osteoblasts
surrounded
by
hard
matrix
become
osteocytes
(mature
bone
cells)
Osteoclasts
break
down
bone
for
repair
and
remodeling
(resorption)
or
if
stored
minerals
are
needed
eg:
Ca
long
bone
structures?
(4
types)
-
ANS-Diaphysis
(shaft)
-
compact
bone
surrounding
inner
cavity
Medullary
cavity
contains
yellow
marrow
Epiphysis
(end)
-
spongy
bone
surrounded
by
compact
bone
Articular
cartilage
-
surrounds
epiphysis
what
are
the
bone
shapes?
-
ANS-flat
-
ribs,
cranium
long
-
most
of
arm
and
leg
bones
short
-
wrist
and
ankle
irregular
-
spinal
column,
facial
bones
what
are
the
bone
tissues?
(2
types)
-
ANS-Compact
hard
and
dense
makes
up
the
shaft
of
long
bones
(diaphysis)
and
the
outer
layer
of
other
bones
Spongy
light
weight,
resembling
a
sponge
small,
bony
plates
with
trabeculae
filled
with
red
marrow
found
at
the
end
of
long
bones
(epiphysis)
and
at
the
center
of
other
bones
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