ANATOMY
10
37.
Which is false with respect to the lateral intermuscular septum
a.
Origin of medial head of triceps
?F
b.
pierced by anterior branch profunda brachii artery
c.
pierced by poterior branch profunda brachii artery
d.
brachiradialis is anterior
?T
NOTE: c, e is true of lateral intermuscular septum – is the attachment of triceps
behind but not sure if medial head and is pierced by profunda brachii artery but
don’t know whether post/ant)
e.
medial head of triceps arises from it.
T
f.
it has brachioradialis as an anterior relation
T
g.
pierced by the radial nerve
T
h.
it extends along the lateral suprachondylar line
T
38.
Regarding flexor digitorum superficialis
a.
It arises from the coronoid process and
sublime tubercle
T - Ulna head Arises from coronoid process. ,medial epicondyle of humerus
(CFO), ulnar collateral lig,. Radial head superior half of anterior border of radius
b.
The tendons of the little/index fingers travel
superior to those of the middle/ring fingers
F - 3,4 superficially and 2,5 deeper therefore this is wrong
39.
Flexor digitorum profundus Moore 737
a.
assists pronator quadratus in pronation
F - No PT
b.
is supplied 10 % of the time purely by the median nerve F
c.
is the strongest muscle of the forearm
T - ?YES
d.
partly inserts into the flexor retinaculum
F - No. Palmaris longus
e.
has it’s action enhanced by wrist flexion
F- No. Strengthened in extension
f.
Attachment olecranon and anterior surface of radius
F - No. It attaches to the olecranon and upper
¾
of the medial border of the
ULNA + IO membrane
g.
it is the strongest forearm muscle
T - Straight from Last’s p 64
40.
Flexor pollucis longus is
a.
unipennate muscle with fibres inserting into its
radial side
T - but the base of the distal phalanx is the insertion – useful in
distinguishing from flexor carpi radialis) lasts 91
NOTE: Long flexor of thumb, only flexor of interphalangeal joint of thumb, also
flexes MCP and carpometacarpal joint of thumb and wrist.
41.
Forearm muscles p742, 736
a.
pronator teres is the most powerful pronator
F - No pronator quad is strongest pronator
b.
palmaris longus is absent in 30 % of cases
F - No in 14% of cases
c.
FPL is unipennate
T
d.
FCR runs over whole length of flexor retinaculum
F - No it runs over the distal half of it and palmar aponeurosis
e.
pronator quadratus arises from lower radius
F - No arises ulna INSERTS radius
42.
Deepest mid-forearm structure is
a.
FPL
T
b.
median nerve
F - Descends between FDS and FDP
c.
basilic vein
F - No is only in upper arm and is superficial
d.
radial artery
F - No p750
e.
ulnar nerve
F - No runs FCU and FDS