Anatomy of the Upper limb Flashcards
Deltoid innervation?
Axillary nerve
Deltoid action?
Posterior fibres- Shoulder extension
Middle fibres- Shoulder abduction
Anterior fibres- Shoulder flexion
Teres major innervation?
Lower subscapular nerve
Teres major action?
internal rotation of humerus
Muscles of rotator cuff?
Supraspinatous
Infraspinatous
Teres minor
Subscapularis
Supraspinatous innervation?
Subscapular nerve
Supraspinatous action?
Abduction of arm
Deltoid blood supply?
Posterior circumflex artery
Infraspinatous innervation?
suprascapular nerve
Infraspinatous action?
External rotation of arm
Teres minor nerve?
Axillary nerve
Teres minor action?
External rotation of arm
Subscapularis innervation?
subscapular nerves
Subscapularis action?
Internally rotates arm
Muscles of anterior compartment of the arm?
Biceps Brachii
Brachialis
Corobrachilais
Biceps blood supply?
Brachial artery
Biceps innervation?
Musculocutaneous nerve
Muscles of anterior compartment of the arm?
Biceps Brachii
Brachialis- flexion at elbow
Corobrachilais- flexion at shoulder
ALL innervated by musculocutaneous
Biceps action?
Flexion at elbow
Suppination at forearm
Muscles of the posterior compartment of the arm?
Triceps brachii
Anconeus
Innervation of posterior compartment of arm?
Radial nerve
Triceps action?
Extension of forearm
Triceps artery?
Profunda brachii
Muscles of anterior compartment of forearm action?
Wrist flexors
Muscles of posterior compartment of forearm action?
Wrist extensors
Muscles of posterior compartment of forearm action?
Wrist extensors
Innervation of anterior forearm?
median nerve
Innervation of posterior forearm?
Radial nerve
Innervation of hand?
Ulnar, median, radial
Blood supply to anterior forearm?
Ulnar artery
Blood supply to posterior forearm?
Radial artery
Blood supply to posterior forearm?
Radial artery
What nerves make up the brachial plexus?
Anterior rami of C5-T1
- Musculocutaneous
- Median
- Ulnar
- Axillary
- Radial