Upper limb, forearm, and hand Flashcards
1
Q
Pectoralis major
A
Innervation: Lateral and medial pectoral nerve (C5 & C6)
Blood supply: Thoracoacromial artery and internal thoracic artery
Action: Adducts and medially rotates arm
2
Q
Pectoralis minor
A
Innervation: Medial pectoral nerve (C8, T1)
Blood supply: thoracoacromial artery and intercostal lateral thoracic arteries
Action: Stabilizes the scapula
3
Q
Subclavius
A
Innervation: Subclavius (C5, C6)
Blood supply: Thoracoacromial artery
Action: Depresses the clavicle
4
Q
Serratus anterior
A
Innervation: Long Thoracic C5-C7
Blood supply:
Action: Raises arm above 90°
5
Q
Deltoid
A
Innervation: Axillary C5,C6
Blood supply: Posterior circumflex
Action: Abducts arm 15-90°
