Page 9 - 8.4 JOINTS

HI
JOI
2.
2. HI NGE JOI NT :
JOI

NGE
NGE
NT
HI
:
:
2.
NT
2. HINGE JOINT:
joints
joints
inge
inge
inge

the
the
the
w
allo
allo
joints
w
w
allo
H
H
• •Hinge joints allow the
H

mo
movements of bones in only in

in

mo v ements of bones in onl y in
mo

of
of

bones

bones
ements
y
y
onl
v
v
ements
in
in
onl
in
F
F
.
.
and
ar

ar
ds
ds

orw
and
orw
one dir ection . F orw ar ds and
one direction. Forwards and

backwards just like hinges on
hinges
hinges
on
bac kw ar ds jus t lik e hinges on
on
w

w
a door which allow the door to
hic
hic
hic
a
w
w
w
door
door
door
to
to
to
door
w

the
the
the
allo
h
h
h
allo
allo
move back and forth.
mo v e bac k and f or th.
x.
inger
f
f
knee
f
w
E
and
,
inger
inger
lbo
E
,
• • Ex. Elbow, knee, finger and
by
joints
ement
ement

ement
.

by

by
T
T
joints
joints
T
toe
toe joints. The movement by
v
v
v
.
he mo
he mo
.
he mo

joint
not
not
than
joint
than
this
this joint is not more than 180
this
this joint is not mor e than 180
mor
mor
180
e
e
180
is
is
he w
g
he w
g
T
de
t
T
t
degrees. The wrist has double
.
.
de g r ees . T he w ris t has double
ris
ris
de
double
ees
double
r
r
has
has
ees
hinge joint.
hinge
joint.