W8 The Shoulder Flashcards
Clavicle
bony attachment between upper limb and trunk
Consequence of limb having one bony attachment
upper limb is highly mobile
Nerve supply of upper limb
arises from neck, from cervical segments, C5, C6, C7, C8 and thoracic segment T1
Nerve roots of upper limb
form plexus in armpit (axilla)
Axilla
armpit
Blood supply of upper limb
Subclavian artery
Subclavian artery name changes
axillary artery then brachial artery
Nerve supply of trazepius
11th cranial nerve
Trapezius function
elevates, rotates and retracts the scapula
Trapezius
broad flat triangular muscle
Latissimus Dorsi function
extend, abducts and medially rotates the upper limb
Latissimus Dorsi insertion
inserts onto the humerus
Rhomboid major function
retracts and rotates the scapula
Rhomboid minor function
retracts and rotates the scapula
Rhomboid minor attachment
attaches to the medial border of the scapula