Upper Limb Flashcards
What vessel dominantly makes the deep palmar arch?
Radial artery
Levator scapulae function and innervation
Raises scapula
Dorsal scapula nerve
Compartments of the forearm
Anterior (superficial, intermediate and deep)
Posterior (superficial and deep)
Compartments of the arm
Anterior and posterior
Muscles of thenar eminence
Flexor pollicis brevis
Abductor pollicis brevis
Opponents pollicis
Innervation to muscles of the deep layer of anterior forearm?
Median
Muscles of superficial layer of anterior forearm
P/F/P/F (lateral to medial:) Pronator Teres Flexor carpi radialis Palmaris longus Flexor carpi ulnaris
Muscles of intermediate layer of anterior forearm
Innervation?
Flexor digitorum superficialis
Median
What is the shoulder labrum?
Fibrous tissue around glenoid circumference
What is a bankart tear?
Inferior, anterior labral tear
Function of interossei muscles
DAB = dorsal muscles abduct fingers PAD = palmar adduct fingers
Serratus anterior innervation and site
Long thoracic nerve
under armpit
Innervation to superficial posterior forearm?
Radial
Teres Minor deetz
Origin = dorsal scapula Insertion = greater tuberosity of humerus Innervation = axillary (C5/C6) Action = arm external rotation
Muscles of hypothenar eminence
Abductor digiti minimi
Flexor digiti minini brevis
Opponens digiti minimi
Subscapularus deetz
Origin = anterior scapula Insertion = lesser tuberosity of humerus Innervation = upper and lower suprascapular nerve Action = arm internal rotation
What are lumbrical, where do they attach, what are their function and innervation?
4 intrinsic hand muscles
Proximally attach anterior then distally attach posterior
Make fingers bend at MCPs to say ‘bye bye’
Medial two are median, lateral two are ulnar
Function and innervation of anterior arm muscles
Flexion of arm and forearm
Musculocutaneous nerve
Innervation of thenar eminence
Median
Muscles of anterior arm
Biceps brachii
Brachialis
Coracobrachialis
(BBC)
Trapezius innervation and function
CNXI
Moves shoulder blades up and down
Contents of carpal tunnel
Flexor digitorum superficialis (x4)
Flexor digitorum profundus (x4)
Median nevre
Flexor polices longus
Back muscles
Trapezius Rhomboid (major, minor) Serratus Anterior latissimus dorsi Levator scapulae
Innervation of interossei muscles
all ulnar
Muscles of deep layer of anterior forearm
Flexor digitorum profundus
Flexor pollicis longus
Pronator Quadratus!
Muscles of the rotator cuff
Supraspinatous
Infraspinatous
Subscapularis
Teres Minor
How much of humeral head is in contact with glenoid fossa at any tie
1/3rd
What are the interossei muscles of the hand
dorsal and palmar muscles
Muscles of the deep layer of posterior forearm
Supinator Abductor pollicis longus Extensor pollicis longus Extensor pollicis brevis Extensor indicis
Trapezius innervation
Accessory nerve, CNXI
Innervation to muscles of the superficial layer of anterior forearm
Pronator teres = median
Flexor carpi radialis = median
Palmaris longus = median
Flexor carpi ulnaris = ulnar
Muscles, innervation function of posterior arm
Triceps brachii
Radial nerve
Extension of arm and forearm (crosses two joints)
Describe arteries from heart to hand
Aortic arch then brachiocephalic then sublavian then axillary then brachial then splits into radial and ulnar that anastamose to form palmar arches
Ligaments in the shoulder girdle?
Coracoclavicular
Coracoacromial
Supraspinatous deetz
Origin = supraspinous fossa Insertion = greater tuberosity of humerus Innervation = suprascapular nerve (C5/C6) Action = arm abduction
Infraspinatous deetz
Origin = infraspinous fossa Insertion = greater tuberosity of humerus Innervation = suprascapular nerve (C5/C6) Action = arm external rotation
Innervation to deep posterior forearm?
Radial
Muscles of the superficial layer of posterior forearm
Brachoradialis Extensor carpi radialis lognus Extensor carpi radialis brevis Extensor carpi ulnaris Extensor digitorum Extensor digiti minimi Aconeus
Innervation of hypothenar eminence
Ulnar
What vessel dominantly makes the superficial palmar arch?
Ulnar artery
Rhomboid positions and innervation
Minor is above major
Dorsal scapular nerve