ANATOMY
16
Upper Limb - Joints
62.
Regarding the acromio-clavicular joint, which is incorrect
a.
The coracoclavicular ligament is not important in
joint stability
F – it maintains it’s integrity
b.
It is a synovial joint
T – plane type
c.
It is supplied by the suprascapular nerve
T – supplied by suprascap nerve
d.
Movement is passive
T
e.
There is a thickening of fibres on top which
constitutes the acromioclavicular ligament
T
f.
is a complex joint with fibrocartilage intracapsular disc T
g.
Moved by subclavius
T - Kinda because it anchors AND depresses it
h.
Coracoclavicular ligament is not important in stability
F - the coracoclavicular (conoid and trapezoid portions) are more NB than AC
lig
i.
AC ligament is important in stability
F - Not hugely
j.
coraco-clavicular ligament is not a stabilising factor
F - CC lig anchors the clavicle to the coracoid process
k.
all movements are passive
T - they are all passive
l.
is innervated by the cervical plexus supraclavicular,
lateral pectoral and axillary nerves – brachial plexus
T
P784-787 p852NM
63.
The sternoclavicular joint p781,711 table 6.4
a.
is supplied by nerve branches C8 and T1
F - Incorrect C456
b.
contains two fibrocartilaginous discs
F - No. Has one disc and two compartments
c.
is the fulcrum of movements of the sterno-clavicular joint F
d.
is mostly stabilised by the costoclavicular ligament
T - There are three others also anterior and posterior SC ligaments and
interclavicular ligament
e.
communicates with the manubriosternal joint
F