Upper Limb Flashcards
Which muscles of the anterior compartment of the forearm are innervated by ulnar nerve?
Flexor digit-rum profundus (part and part medial nerve)
Flexor carpi ulnaris
Lateral border of cubital fossa
BRACHIORADIALIS
Medial border of cubital fossa
Pronator teres
What muscles extend and abduct the hand at wrist joint?
Extensor carpi radialis longus and brevis
What muscles have 2 heads?
Pronator teres
Supinator
Flexor carpi ulnaris
The middle trunk of the brachial plexus is formed by which roots C.
C7
The nerve supply and action of the muscle labelled X are:
See nerve first- ie forearm
Anterior compt median (two have ulnar)
Posterior compartment (radial)
Action- see compartment- flexor, extensor
The arch labelled A
Formed by the ulnar artery with some contribuiti9n from the radial artery
What structures pass in the triangular space?
Circumflex scapular artery
What is the superior border of triangular space?
Lower margin of teres minor
What is the inferior border of triangular space?
Upper margin of teres major
What is the lateral border of the triangular space?
Medial margin of long head of triceps
What are the borders of triangular space?
Teres minor
Teres major
Long head of triceps
What are the borders of the quadrangular space?
Teres minor
Teres major
Long head of triceps
Lateral head of triceps/humerus
What are the contents of the quadrangular space?
Posterior circumflex humeral artery
Axillary nerve
What are the contents of the triangular interval
Profound a brachial artery
Radial nerve
What are the borders of the triangular interval?
Inferior margin of teres major
Lateral margin of long head of triceps
Medial margin of lateral head of triceps/humerus
To which spaces/intervals the humerus/lateral head of triceps constitutes the lateral border?
Quadrangular space
Triangular interval
What are the roots of the brachial plexus
C5, C6, C7, C8 and T1
What are the roots of the superior trunk of the brachial plexus?
C5 and C6
What are the roots of the inferior trunk of the brachial plexus?
C8 and T1
What are the roots of the lateral chord?
C5, C6 and C7
What are the roots of the posterior chord?
C5, C6,C7,C8, T1
What are the roots of the medial chord of the brachial plexus?
C8 and T1
Where does the axillary artery starts?
Lateral margin of first rib.
Where does the brachial artery starts?
Lower margin of teres major
4 muscles of the posterior forearm that attach in part to the interosseous membrane
Abductor pollicis lungus, extensor pollicis breves, extensor pollicis lungus, extensor indices.
What muscle of the hand are NOT supplied by the ulnar nerve?
Thenar, lateral 2 lumbricals
What muscles are supplied by the ulnar nerve?
Flexor carpi ulnaris, FLEXOR DIGITORUM PROFUNDUS, muscles of hand.
What nerve passes through the 2 heads of the flexor carpi ulnaris?
Ulnar nerve
What nerve passes through the 2 heads of pronator teres?
Median nerve
Where does the axillary nerve passes?
Quadrangular space with posterior circumflex humeral artery
What muscles are innervated by the axillary nerve?
Deltoid and Teres minor.
Teres minor innervation?
Axillary nerve
Where does axillary nerve originates?
Posterior chord (C5-C6)
Where does radial nerve originates?
Posterior chord (all roots)
What space/interval the radial nerve passes through?
Triangular interval with profunda brachii
What goes on the spiral groove of humerus?
Profunda brachiii and radial nerve
What are the borders of the snuffbox?
Extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus.
What are the contents of the anatomical snuffbox?
Radial artery, scaphoid, trapezium, base of 1st metacarpal, radial stiloyd process.
Superficial muscles of anterior compartment of forearm.
Pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris.
Intermediate muscles of flexor compartment of forearm.
Flexor digitorum superficialis.
Deep muscles of anterior forearm compartment.
Flexor digitorum profundus (sits on the ulna), flexor pollicis longus (‘sits on the radium), pronator quadratus.
Floor of cubital fossa
Brachialis tendon and supinator
Coracobrachialis action and innervation
Adduction, flexion at the GHJ, musculocutaneous
Biceps brachii insertion
Radial tuberosity
Biceps brachii action and innervation
Musculocutaneous, flexion at elbow, flexion at shoulder supination of forearm
Brachialis insertion
Coronoid process and ulna tuberosity
Brachialis action and innervation
Flexion at forearm, musculocutaneous, radial.
Triceps origin and insertion
Infraglenoid tubercle, posterior asurface of humerus to olecranon of ulna via common tendon.
Triceps action and innervation
Extension at arm and forearm, radial
Beginning and end of axillary artery
Lateral border of first rib to inferior border of teres major
Branches of 1st axillary artery
Superior thoracic artery
Branches of 2nd part of axillary artery
Toraco acromial trunk, lateral thoracic artery
Axillary artery 3rd part branches
Subscapular artery, anterior and posterior circumflex arteries
Veins that go through axilla
Axillary vein, basilic vein, cephalic vein
Axillary lateral wall
Intertubercular sulcus, coracobrachialis, short head of biceps