Upper Limb 3 Flashcards
Muscles that extend the medial four digits:
Extensor digitorum
Extensor indicis
Extensor digiti minimi
Muscles that extend and abduct or adduct the hand at the wrist joint:
Extensor Carpi radialis longus
Extensor Carpi Radialis brevis
Extensor Carpi ulnaris
Muscles that extend or abduct the thumb:
Abductor pollicis longus (APL)
Extensor pollicis brevis (EPB)
Extensor pollicis longus (EPL)
Muscles that adduct and medially rotate arm
Pectoralis major
Latissimus dorsi
Teres major
Subscapularis
Muscles that flex arm
Biceps brachii
Coracobrachialis
Deltoid (clavicular head)
Muscles that laterally rotate arm
Deltoid (spinal part)
Infraspinatus
Ters minor
Muscles innervated by musculocutaneous nerve
Biceps brachii (C5, C6)
Brachialis (C5, C6)
Coracobrachialis (C5, C6, C7)
Skin of lateral aspect of forearm
What does axillary nerve innervate?
Teres minor Deltoid Glenohumeral joint Skin of superolateral arm (Over inferior part of deltoid)
Contents of quadrangular space
Axillary nerve
Posterior circumflex humeral artery
Contents of cubital fossa
Brachial artery Biceps tendon Median nerve Radial nerve Median cubital vein Medial and lateral cutaneous nerve- in subcutaneous tissue overlying cubital fossa
Branches of brachial artery
Deep brachial artery
Superior ulnar collateral
Inferior ulnar collateral
Quadrangular space
Inferior border of teres minor
Superior border of teres major
Lateral border of long head of triceps brachii
Humerus
A branch of the radial nerve
Supplies the skin on the posterior surface of the arm
Posterior cutaneous nerve of the arm (C5-C8)
A branch of the radial nerve
Supplies the skin on the posterior surface of the forearm
Posterior cutaneous nerve of forearm (C5-C8)
Terminal branch of the axillary nerve
Emerges from the posterior margin of the deltoid
To supply the skin over the lower part of deltoid and on the lateral side of midarm
Superior lateral cutaneous nerve of arm (C5, C6)
Branch of Radial nerve
Supplies the skin over the inferolateral aspect of arm
Frequently a branch of the posterior cutaneous nerve of the forearm
Inferior lateral cutaneous nerve of arm (C5, C6)
Terminal branch of musculocutaneous nerve
Supplies the skin on the lateral side of the forearm
Lateral cutaneous nerve of forearm (C6, C7)
From the medial cord of the brachial plexus
Often uniting in the axilla with the lateral cutaneous branch of the second intercostal nerve
Supplies the skin on the medial side of arm
Medial cutaneous nerve of the arm (C8-T2)
From the medial cord of the brachial plexus
Supplies the skin on the anterior and medial surfaces of the forearm
Medial cutaneous nerve of forearm (C8, T1)
Muscles that originate from the medial epicondyle
Flexor Carpi Radialis
Palmaris longus
Pronator teres (humeral head)
Flexor digitorum superficialis (humero-ulnar head)
Muscles that originate at the lateral epicondyle of humerus
Extensor Carpi Radialis brevis Extensor digitorum Extensor digiti minimi Extensor Carpi ulnaris Supinator
Bicipitalradial bursa (biceps bursa)
Separates the biceps tendon from the anterior part of radial tuberosity
Subtendinous olecranon bursa
Located between the olecranon and the triceps tendon
Just proximal to its attachment to olecranon
Subcutaneous olecranon bursa
Located in the subcutaneous connective tissue over the olecranon
