Upper Limbs Flashcards
(29 cards)
what movements occur at the sternoclavicular joint?
- elevation
- depression
- protraction
- retraction
What type of shoulder dislocation is more common? why?
Inferior dislocation is more common
- coracoacromial ligament protects superior aspect of joint
Which rotator cuff muscle does not insert at the greater tubercle of the humerus
subscapularis - inserts at lesser tubercle
Teres minor: origin, insertion, action
Origin: lateral border of scapula
Insertion: greater tubercle of humerus
Action: external rotation
Teres major: origin, insertion, action
Origin: lateral border of scapula
Insertion: humerus – intertubercular sulcus*
Action: adduction, extension, internal rotation
Supraspinatus: origin, insertion, action
Origin: supraspinous fossa
Insertion: greater tubercle
Action: 0-15 degrees adduction
Infraspinatus: origin, insertion, action
Origin: infraspinous fossa
Insertion: greater tubercle
Action: external rotation
subscapularis: origin, insertion, action
Origin: subscapular fossa
Insertion: lesser tubercle
Action: internal rotation
Biceps brachii (long & short head): origin, insertion, action
Origin: NOTE: SKIPS HUMERUS
— Short: coracoid process of scap.
— Long: supraglenoid tubercle* of scap.
Insertion: radial tuberoisty & biciptal aponeurosis
Action: flexion of elbow & shoulder joint
Coracobrachialis: origin, insertion, action
Origin: coracoid process
Insertion: humeral midshaft
Action: shoulder adduction & flexion
Brachialis: origin, insertion, action
Origin: distal anterior humerus
Insertion: ulnar tuberosity
Action: prime elbow flexor
Superficial anterior forearm muscles mnemonic
Pass, Fail, Pass, Fail
Pass - Pronator teres
Fail - Flexor carpi radialis
Pass - Palmaris longus
Fail - Flexor carpi ulnaris
Ulnar nerve motor supply
Forearm:
- Flexor carpi ulnaris
- Medial 1/2 of flexor digitorum profundus
Hand:
- All except LOAF
Superficial posterior forearm muscles mnemonic
Beer Lifting, Break Dancing Muscles Unless Atrophied
Beer - Brachioradialis
Lifting - Extensor carpi radialis Longus
Break - Extensor carpi radialis Brevis
Dancing - Extensor Digitorum
Muscles - Extensor digiti Minimi
Unless - Extensor carpi ulnaris
Atrophied - Aconeus
Flexor carpi radialis: origin, insertion, action
Origin - medial epicondyle
Insertion: base of 2nd + 3rd metacarpal
Action: wrist flexion & abduction
Where does the forearm common flexor tendon originate from?
Medial epicondyle of humerus
Palmaris longus: origin, insertion, action
Origin: medial epicondyle
Insertion: palmar aponeurosis
Action: wrist flexion
Flexor carpi ulnaris: origin, insertion, action
Origin: medial epicondyle of humerus & olecranon process of ulna
Insertion: pisiform, hamate, 5th metacarpal
Action: wrist flexion & adduction
Flexor digitorum superficialis: action
proximal phalanx flexion
wrist flexion
Median nerve innvervations
Motor:
Forearm:
* All forearm FLEXORS not supplied by ulnar nerve
Hand:
* LOAF
Sensory:
- lateral 3 1/2 fingers
- lateral 2/3 palm
- palmar cutaneous branch supplies lateral palmar skin
Flexor digitorum profundus: action
distal phalanx flexion
Ulnar nerve innervations
Motor supply:
Forearm:
* flexor carpi ulnaris
* medial 1/2 of flexor digitorum profundus
Hand:
* All intrinsic hand muscles except LOAF
Sensory:
- medial 1 1/2 of fingers
- medial 1/3 of palm
Is the biceps brachii long head lateral or medial?
Lateral - Long head
Triceps brachii insertion
olecranon process
