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3 Part of the upper limb between the elbow joint and the wrist join t Elbow joint Wrist joint FOREAR M

4 Most major structures (nerves,veins,arteries) via cubital fossa, anterior to elbow joint Exception  ulnar nerve posterior to the medial epicondyle of humerus

5 Anterior & posterior compartments Separated by: Lateral intermuscular septum from the anterior border of the radius to deep fascia surrounding the limb Interosseous membrane links borders of the radius and ulna Attachment of deep fascia along the posterior border of the ulna

6 Muscles in the anterior compartment Flex the wrist & digits Pronate the hand Muscles in the posterior compartment Extend the wrist & digits Supinate the hand

7 The muscles of the anterior compartment Mainly by median nerve The one and a half exceptions by ulnar nerve The muscles of the posterior compartment All by radial nerve (directly or by its deep branch)

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9 In 3 layers Superficial Deep Intermediate

10 Superficial layer flexor carpi radialis flexor carpi ulnaris palmaris longus pronator teres Medial epicondyle of humerus Pisiform

11 flexor digitorum superficialis Intermediate layer Deep layer flexor digitorum profundus flexor pollicis longus pronator quadratus Distal phalanx -base Distal phalanx -base Middle phalanx - shaft

12 Flexor digitorum superficialis Flex metacarpophalangeal & proximal interphalangeal joints Flexor digitorum profundus Flex the distal phalanges of medial 4 fingers Flexor pollicis longus Flex the thumb Pronator teres Rotate radius over ulna during pronation Pronator quadratus Prime mover for pronation Flexor carpi ulnaris Flexes and adducts hand (at wrist) Flexor carpi radialis Flexes and abducts hand (at wrist) Palmaris longus Flexes hand (at wrist) and tenses palmar aponeurosis

13 All the muscles by median nerve Except 1.5 muscles by ulnar nerve Flexor carpi ulnaris full Flexor digitorum profundus medial half part associated w/ring & little fingers

14 Inf. border of teres major Axillary artery Till where? Brachial artery Neck of the radius Bracihal artery divides into Ulnar artery (medial) Radial artery (lateral )

15 (Paired) Deep veins accompanying veins plentiful in the forearm. arise from the anastomosing deep venous palmar arch in the hand. brachial veins drain into brachial veins in the cubital fossa.

16 principal nerve no branches in the arm other than small twigs to the brachial artery. Its major branch in the forearm anterior interosseous nerve Leaves the cubital fossa by passing between 2 heads of the pronator teres and humero-ulnar and radial heads of the flexor digitorum superficialis.

17 Enters the anterior compartment by passing posteriorly around medial epicondyle of humerus and between humeral and ulnar heads of flexor carpi ulnaris muscle Two small cutaneous branches; palmar branch & dorsal branch

18 motor and sensory functions in both arm & forearm (but only sensory functions in the hand) in the forearm Superficial Superficial (sensory) deep to brachioradialis deep (motor) between two heads of supinator

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21 An important area of transition between the arm and the forearm. seen superficially as a depression on the anterior aspect of the elbow. Deeply, it is a space filled with a variable amount of fat anterior to the most distal part of the humerus and the elbow joint.

22 Superiorly imaginary line connecting medial &lateral epicondyles. Medially Medially pronator teres. Laterally Laterally brachioradialis.

23 1) Terminal part of the brachial artery,radial and ulnar arteries 2) Biceps brachii tendon 3) Median nerve 4) Radial nerve 5) (Deep) accompanying veins of the arteries

24 Superficially, in the subcutaneous tissue overlying the fossa median cubital vein, medial and lateral antebrachial cutaneous nerves basilic and cephalic veins.

25 median nerve lies immediately medial to the brachial artery and leaves the fossa by passing between the ulnar and humeral heads of the pronator teres muscle. radial nerve lies under brachioradialis (lateral margin of the fossa) gives off deep branch of the radial nerve and continues as superficial radial nerve.

26 Just can’t get enough by Deepeche Mode

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