Upper Limb Flashcards
Muscles of the Scapula and Clavicle
**feel like this will be on test
Roger Rabbit Loves to Smoke Pot Seriously
Rhomboideus major fx adducation and d rotation
Rhomboideus minor fx d rotation
Levator Scapulae Muscle fx: elevation (in name)
Trapezius Muscle fx: upward rotation; assists w elevation, ; adduction of scapula; extension of head; stabilization
Serratus Anterior fx: abduction of scapula, upward rotation
Pectoralis Minor fx: ABduction of scapula, d rotation
Subclavius Muscle fx: d rotation of clavicle; stabilizes clav
Shoulder Joint
ball and socket joint
some ligaments: cracohumeral, transverse humeral, glenohumeral
Rotator Cuff Muscles (4)
SITS
Supraspinatus Muscle fx: ABduction of shoulder
Infraspinatus Muscle fx: lateral rotation of shoulder
Teres Minor Muscle fx: lateral rotation of shoulder
Subscapularis Muscle fx: Medial rotation of shoulder
common fx’s: stabilizes shoulder joint
Shoulder Cap
Deltoid fx: aBduction of shoulder; flexion and weak medial and lateral rotation
Intertubercular Groove Muscles
Pec Major fx: pulls trunk upward when arms above trunk
Teres Major:
Lats: pulls trunk upward when arms above trunk
common fx’s: adduction of shoulder; medial rotation; extension of a flexed shoulder
Elbow Joint is made up of what three joints?
Name ligaments involved?
Uturn CAR
humero-ulnar
humero-radial
proximal radio-ulnar
ligaments: capsular lig, ulnar collateral, radial collateral, and unular
Brachial Muscles
Coracobrachialis fx: flex shoulder
Brachialis fx: flex elbow
Biceps Brachi fx: flex elbow, flex shoulder, supination
Triceps Brachii fx: extension of elbow, assist w extension of shoulder
common fxs: flex
Axilla
What is it?
Boundaries?
Contents
Axilla is the deepest part of armpit, superior and in between these boundaries: Pec Major Rib Cage Lats Teres Major Contents: arteries veins nerves
Deltopectoral groove
indentation between deltoid and pec major that contains cephalic vein and can feel coracoid
Quadrangular Space
Triangular Space
Quad: a space between shoulder muscles teres minor, long head of tricep, teres major and humorus
Tri: a space between shoulder muscles teres major and minor and long head of tricep
Arterial Pathways in Shoulder and Brachium
Aorta, brachiocepahlic, subclavian artery, then:
Internal Thoracic
Vertebral artery
Thyrocervical trunk- suprascapular artery
Dorsal Scapular Artery
Then Axillary Artery which has lots of branches
Arterial Pathways in Shoulder and Brachium
Axillary Artery ( from 1st rib to teres major tendon)
3 branches:
1 S
2 w 2 branches T-PACD L
3 w 3 brances S-CT P A
Branch 1: Superior Thoracic (serratus anteriors) Branch 2 w 2 Branches: Thoracoacromial Artery: -Pec -Acromial -Clavicular -Deltoid Lateral Throacic artery Branch 3 w 3 Branches: Subscapular Artery -circumflex scapular artery (goes throught tri space) -thoracodorsal artery Posterior circumflex humeral artery Anterior circumflex humeral artery
Brachial Artery (border teres major tendon and where it branches into radial and ulnar arteries)
Profunda Brachii Artery -radial collateral artery -medial collateral artery Superior Ulnar Collateral Inferior Ulnar Collateral Ulnar Artery -Anterior Ulnar recurrent -Posterior Ulnar recurrent Radial Artery-radial recurrent artery
Veins
Superficial Veins
(like a house)
Basilic Vein
Cephalic Vein
Median Cubital Vein
Wrist Joint
pivot joint
Antebrachial Anterior Compartment
Superfiicial and Deep
Think in terms of F’s and P’s
FFFPP
FFP
innervated by median and ulnar nerve
Superficial fyi( all originate at medial epicondyle)
Pronator Teres fx: pronation
Flexor Carpi Radialis fx: flex wrist, AB
Palmaris Longus fx: anchor skin and fascia of hand
Flexor Carpi Ulnaris fx: flex wrist
Flexor Digitorum Superficialis (intermediate muscle) fx: flex wrist and digits
Deep:
Flexor Digitorum Profundus fx: flex wrist
Flexor Pollicis Longus fx: flex thumb
Pronator Quadratus fx: pronator
common fx’s: flex wrist and pronators
Posterior Antebrachial Compartment
Lateral and Radial
Think in terms of BEESA
BEEEEESA
EEEA
Innervated by radial nerve
Lateral: (fyi: all originate at lateral epicondyle)
Brachioradialis fx: flex elbow
Extensor Carpi Radialis Longus fx extension of wrist/ AB
Extensor Carpi Radialis Brevis fx extension of wrist/ AB
Extensor Digitorum fx: extension of wrist and digits
Extensor Digiti Minimi fx: extension of pinky
Extensor Carpi Ulnaris fx: extension of wrist/ ADduction
Supinator fx: supination
Anconeus fx: extension of elbow
Radial:
ABductor Pollicis Longus fx: AB of thumb
Extensor Pollicis Longus fx: extension of thumb
Extensor Pollicis Brevis fx: extension of thumb minus distal phalange
Extensor Indicis: fx: extend wrist and index finger
Lateral common fx’s: extension of wrists and fingers
Radial common fx’s: Extension of specific fingers
Muscles of hand
Hypothenar Muscles
Abductor digiti minimi fx: AB of lil finger
Flexor digiti minimi brevis fx: flex lil finger
Opponens digiti minimi fx: flexes lil finger and rotates it to thumb
Palmaris Brevis- helps grip by elevation
Fx’s revolve around lil finger
Muscles of hand
Thenar Muscles
Abductor polllicis brevis fx: AB of thumb
Flexor pollicis brevis fx: flex thumb
Opponens pollicis fx flex and rotate thumb to lil finger
Adductor Pollicis fx: AD of thumb
fx’s are in names
Muscles of hand
Intermetacarpal muscles
Lumbrical fx: weak flex; extension of interphanangeal joints
Palmar Interossei PAD fx: AD of 1, 2, 4, and 5
Dorsal Interossei DAB fx: AB 2, 3, 4
Carpal Tunnel
floor are carpal bones
roof is retinaculum
what’s inside are 9 tendons and median nerve
other tendons and vessels are outside the tunnel
Blood Supply to Antebrachium and Hand
Radial Ulnary Superficial palmar arch Deep Palmar arch Branches to digits
Less obvious nerves and what the innervate
teres minor- axillary nerve teres major- lower subscapular trapezius- cranial XI (accessory) radial nerve- triceps median nerve--abductor pollicis, part of the other pollics muscles of anterior compartment of antebrachium and 1/2 lumbricals of hand
