ANATOMY
8
27.
The deltoid p760 NM
a.
is supplied by the axillary nerve
T - p711, 691Moore
b.
has a multipennate arrangement for maximal
range of movement
T - There is a unipennate ant and post part and a ,multipennate middle part
p695
c.
inserts into the bicipital groove
F - no.proximal attachment is lateral third of clavicle, acromion and scapula, and
distal end is deltoid tuberosity of humerus p691
d.
Is unipennate
F - mulitpennate in the middle and unipennate posteriorly and anteriorly
e.
Origin
From deltoid tubercle on humerus to lateral portion clavicle+spine of
scapula and acromion
f.
Innervation
Axillary n (C5,6)
28.
Regarding the subclavius; which is incorrect
a.
inserts into the first costochondral joint
T
b.
is important in stabilising the clavicle with shoulder
1.
movement
T
c.
supplied by the medial pectoral nerve
F – by n to subclavius
29.
Serratus anterior (pg 689)
a.
Protracts scapula
T - pg 688 Moore
b.
Formed by 6 slips
False – has muscular slips ?how many - 8) p688
c.
Supplied by thoracodorsal nerve
F – long thoracic nerve supplies serratus
anterior, thoracodorsal supplies lat dorsi
d.
Medially rotates the shoulder
T - rotates scapula
e.
is unipennate
F - has fleshy slips
f.
Arises from the upper 6 ribs
F – arises from upper upper 1-8
th
ribs
g.
is supplied by the thoracodorsal artery `
F - artery is superior thoracic
30.
Pectoralis major (pg 687, 752 moore)
a.
Only muscle that can be used to test all levels of
brachial plexus
T
b.
Adducts arms
T
c.
Attaches to a tuberosity
F – proximal attachment – 2 heads – clavicular head, ant surface of medial
half of clavicle and Sternocostal head, ant surface of sternum, sup 6 costal
cartilages, aponeurosis of ext oblique muscle – distal attachment + lateral lip of
intertubercular groove of humerus
d.
Is accessory muscle of respiration
T – pg 80 moore – when breathing forceful and deep
e.
Abducts arm
F – adducts and arm and medial rotator of humerus
f.
Costal part has bone attachments
F - attaches proximally to costal cartilages
g.
supplied by all branches of the brachial plexus
F - it is supplied by all the ROOTS not branches p68
h.
is quadrilateral in shape
F - More triangular in shape
i.
inserts to the medial lip of bicipital groove
F - Proximal: Clavicular head: anterior surface of medial
½
of clavicle,
Sternocostal head: anterior surface of sternum, superior six costal cartilages,
aponeurosis of ext oblique.
Distal: Intertubercular groove of humerus
j.
is supplied by all 5 segments of the brachial plexus
T - YES C5-T1
k.
lies between biceps and the humeral shaft
F - No I don’t think so. I think it passes over the short head of biceps
l.
has a head arising from posterior surface clavicle
F- No the clavicular head arises from the anterior suface of the clavicle
