Chapter 51 Summarized neruovascular structures of the upper limb Part 1

MUSCULOCUTANEOUS NERVE It typically pierces the coracobrachialis muscle

MUSCULOCUTANEOUS NERVE It typically pierces the _________ muscle

RADIAL NERVE The nerve passes through the lateral side of the cubital fossa.

RADIAL NERVE The nerve passes through the _________ side of the cubital fossa.

ANTERIOR INTEROSSEOUS NERVE (AIN) It courses distally along the anterior surface of the interosseous membrane, between the flexor pollicis longus and flexor digitorum profundus muscles.

ANTERIOR INTEROSSEOUS NERVE (AIN) It courses distally along the anterior surface of the _________ _________ , between the _________ _________ _________ and _________ _________ _________ muscles.

ANTERIOR INTEROSSEOUS NERVE (AIN) The anterior interosseous nerve arises as a branch of median nerve within the cubital fossa.

ANTERIOR INTEROSSEOUS NERVE (AIN) The anterior interosseous nerve arises as a branch of _________ nerve within the _______ _____.

As the median nerve enters the forearm, it courses between the two heads of origin of the pronator teres muscle.

As the median nerve enters the forearm, it courses between the two heads of origin of the _________ _________ muscle.

Between the brachialis and brachioradialis muscles, the radial nerve divides into its 2 terminal branches: a. Superficial branch of the radial nerve b. Deep branch of the radial nerve

Between the _________ and _________ muscles, the radial nerve divides into its _________ terminal branches: name them

DEEP BRANCH OF THE RADIAL NERVE As the nerve enters the superior border of the supinator muscle, its name changes to posterior interosseous nerve (PIN).

DEEP BRANCH OF THE RADIAL NERVE As the nerve enters the superior border of the _________ muscle, its name changes to pos _________ _________ nerve ( _________ ).

DEEP BRANCH OF THE ULNAR NERVE It courses around the hook of the hamate to pass laterally across the palm, just anterior to the interossei muscles.

DEEP BRANCH OF THE ULNAR NERVE It courses around the hook of the _________ to pass laterally across the palm, just anterior to the _________ muscles.

In the distal forearm, the ulnar dorsal nerve gives off a dorsal branch that cutaneously innervates the dorsum of the medial 1.5 digits and hand.

In the distal forearm, the ulnar nerve gives off a __________ branch that ____________ innervates the dorsum of the medial _________ digits and ________.

In the wrist, the ulnar nerve is accompanied by the ulnar artery as it enters the hand by passing anterior to the flexor retinaculum, outside the carpal canal and through Guyon's canal.

In the wrist, the ulnar nerve is accompanied by the _________ artery as it enters the hand by passing anterior to the flexor retinaculum, _________ the carpal canal and through _________ canal.

Lateral to the pisiform bone, the ulnar nerve divides into its 2 terminal branches: a. Superficial branch of ulnar nerve b. deep branch of ulnar nerve

Lateral to the _________ bone, the ulnar nerve divides into its 2 terminal branches: name them

MEDIAN NERVE Proximal to the flexor retinaculum, the median nerve gives off a palmar branch that courses anterior to the flexor retinaculum to cutaneously innervate the skin of the lateral palm.

MEDIAN NERVE Proximal to the flexor retinaculum, the median nerve gives off a _________ branch that courses _________ to the flexor retinaculum to cutaneously innervate the _________ of the _______ palm.

MEDIAN NERVE c. The recurrent branch of the median nerve courses proximally into the thenar area supplying 2.5 thenar muscles: i. Abductor pollicis brevis ii. Flexor pollicis brevis (superficial head) iii. Opponenspollicis

MEDIAN NERVE c. The recurrent branch of the median nerve courses proximally into the thenar area supplying _________ thenar muscles: DON'T need to know below i. _________ _________ _________ ii. _________ _________ _________ ( _________ head) iii. _________

MEDIAN NERVE It then courses through the carpal canal and enters the hand.

MEDIAN NERVE It then courses through the _________ _________ and enters the hand.

MEDIAN NERVE The nerve descends through the forearm, between the flexor digitorum superficialis and the flexor digitorum profundus muscles.

MEDIAN NERVE The nerve descends through the forearm, between the _________ _________ _________ and the _________ _________ _________ muscles.

MEDIAN NERVE The nerve then divides into its terminal branches at the distal border of the flexor retinaculum: a. Direct branches of the median nerve provide muscular innervation to lumbricals _1_ and _2_. b. Digital branches of the median nerve give cutaneous innervation to the lateral 3.5 digits anteriorly and their tips posteriorly.

MEDIAN NERVE The nerve then divides into its terminal branches at the distal border of the _________ _________ : a. ________ branches of the median nerve provide muscular innervation to _________ _1_ and _2_. b. _______ branches of the median nerve give cutaneous innervation to the lateral _________ digits anteriorly and their ________ posteriorly.

MEDIAN NERVE Within the cubital fossa, it gives off a branch called the anterior interosseous nerve (AIN).

MEDIAN NERVE Within the cubital fossa, it gives off a branch called the _________ _________ nerve ( _________ ).

MEDIAN NERVE descends through the medial compartment of the arm, where it has no muscular or cutaneous innervation.

MEDIAN NERVE descends through the _________ compartment of the arm, where it has _________ muscular or cutaneous innervation.

MEDIAN NERVE travels through the cubital fossa (a depression on the anterior aspect of the elbow) where it is found medial to the brachial artery.

MEDIAN NERVE travels through the _________ _________ (a depression on the anterior aspect of the elbow) where it is found _________ to the _________ artery.

MUSCULOCUTANEOUS NERVE It descends through the anterior compartment of the arm, coursing between the biceps brachii and brachialis muscles.

MUSCULOCUTANEOUS NERVE It descends through the anterior compartment of the arm, coursing between the _________ _________ and _________ muscles.

Proximal to the flexor retinaculum, the ulnar nerve also gives off a palmar branch that courses anterior to the flexor retinaculum to cutaneously innervate the skin of the medial palm.

Proximal to the flexor retinaculum, the ulnar nerve also gives off a _________ branch that courses _________ to the flexor retinaculum to cutaneously innervate the _________ of the _________ palm.

RADIAL NERVE 5. It pierces the lateral intermuscular septum as it passes from the posterior to the anterior compartment of the arm.

RADIAL NERVE 5. It pierces the _________ _________ _________ as it passes from the posterior to the anterior compartment of the arm.

RADIAL NERVE It courses with the profunda brachii artery

RADIAL NERVE It courses with the _________ _________ artery

RADIAL NERVE The nerve courses from medial to lateral behind the humerus in the radial groove which is located in the posterior compartment of the arm.

RADIAL NERVE The nerve courses from _______ to ________ behind the _________ in the ______ ______ which is located in the ____________ compartment of the arm.

SUPERFICIAL BRANCH OF THE RADIAL NERVE 2. In the wrist, the nerve passes over the tendons of the anatomical snuffbox and enters the hand to provide cutaneous innervation to the skin on the lateral half of the dorsum of the hand, and the proximal portion of the lateral 3.5 digits, posteriorly. 3. It has no muscular innervation.

SUPERFICIAL BRANCH OF THE RADIAL NERVE 2. In the wrist, the nerve passes over the tendons of the _________ _________ and enters the hand to provide cutaneous innervation to the skin on the _________ half of the _________ of the hand, and the _________ portion of the lateral _________ digits, posteriorly. 3. It has _________ muscular innervation.

SUPERFICIAL BRANCH OF THE ULNAR NERVE 3. It divides into cutaneous digital branches that supply the medial 1.5 digits, anteriorly.

SUPERFICIAL BRANCH OF THE ULNAR NERVE 3. It divides into _______ _______ branches that supply the medial _____# digits, anteriorly.

The anterior interosseous nerve innervates 2.5 muscles in the forearm: a. Flexor digitorum profundus (lateral half) b. Flexor pollicis longus c. Pronator quadratus

The anterior interosseous nerve innervates ____ muscles in the _________ : name them

The deep branch of the radial nerve innervates 1 muscle in the forearm: a. Extensor carpi radialis brevis

The deep branch of the radial nerve innervates _________ muscle in the _________ : name them

The deep branch of the ulnar nerve innervates 14.5 muscles in the hand: a.Abductor digiti minimi b. Flexor digiti minimi brevis c. Opponens digiti minimi d. Lumbricals 3 and 4 e. Dorsal interossei (1-4) f. Palmar interossei (1-4) g. Adductorpollicis h. Flexor pollicis brevis (deep head)

The deep branch of the ulnar nerve innervates _________ muscles in the _________: name them

The deep branch of the ulnar nerve courses between 2 hypothenar muscles, namely the abductor digiti minimi and flexor digiti minimi brevis muscles.

The deep branch of the ulnar nerve courses between 2 hypothenar muscles, namely the _________ _________ _________ and _________ _________ _________ _________ muscles.

The four primary nerves of the upper limb all course through the arm: 1. Musculocutaneous nerve 2. Median nerve 3. Ulnar nerve 4. Radial nerve

The four primary nerves of the upper limb all course through the arm: 1 2 3 4

The median nerve innervates _4_ muscles in the forearm: a. Pronator teres b. Flexor carpi radialis c. Palmaris longus d. Flexor digitorum superficialis

The median nerve innervates ____# muscles in the _________ : name them

The ulnar nerve is the continuation of the medial cord of the brachial plexus, beginning after the medial root of the median nerve is given off.

The ulnar nerve is the continuation of the _________ cord of the brachial plexus, beginning after the _________ root of the median nerve is given off.

The median nerve originates from the lateral root and the medial root of the median nerve. These roots arise from the lateral and medial cords of the brachial plexus, respectively.

The median nerve originates from the _________ root and the _________ root of the _________ nerve. These roots arise from the _________ and _________ cords of the brachial plexus, respectively.

The musculocutaneous nerve innervates 3 muscles in the arm: a. Coracobrachialis b. Biceps brachii c. Brachialis

The musculocutaneous nerve innervates ___# muscles in the _________: name them

The musculocutaneous nerve is the continuation of the lateral cord of the brachial plexus, beginning after the lateral root of the median nerve is given off.

The musculocutaneous nerve is the continuation of the _________ cord of the brachial plexus, beginning after the lateral root of the _________ nerve is given off.

The musculocutaneous nerve then emerges lateral to the tendon of the biceps brachii muscle and becomes the lateral antebrachial cutaneous nerve (LAC).

The musculocutaneous nerve then emerges _______ to the tendon of the _________ _________ muscle and becomes the _________ _________ _________ nerve ( _________ ).

The posterior interosseous nerve does not enter the hand.

The posterior interosseous nerve does not enter the _________ .

The posterior interosseous nerve innervates 8 muscles in the forearm: a. Extensor digitorum b. Extensor digiti minimi c. Extensor carpi ulnaris d. Supinator e. Abductor pollicis longus f. Extensor pollicis brevis g. Extensor pollicis longus h. Extensor indicis

The posterior interosseous nerve innervates _________ muscles in the _________ : dont need to know all of the muscles

The radial nerve innervates 1 muscle in the arm: a. Triceps brachii

The radial nerve innervates _________ muscle in the _________: name them

The radial nerve innervates 3 muscles in the forearm: a. Brachioradialis b. Extensor carpi radialis longus c. Anconeus

The radial nerve innervates _________ muscles in the forearm: name. them

The radial nerve is the continuation of the posterior cord of the brachial plexus, beginning a:er the axillary nerve is given off.

The radial nerve is the continuation of the _________ cord of the brachial plexus, beginning after the _________ nerve is given off.

The superficial branch of the radial nerve courses distally with the radial artery, deep to the brachioradialis muscle.

The superficial branch of the radial nerve courses distally with the _________ artery, deep to the _________ muscle.

The superficial branch of the ulnar nerve courses deep to the palmaris brevis muscle. The nerve innervates 1 muscle in the hand: a.Palmaris brevis

The superficial branch of the ulnar nerve courses deep to the _________ _________ muscle. The nerve innervates _________ muscle in the hand: name them

The ulnar nerve It courses through the forearm between the flexor carpi ulnaris and flexor digitorum profundus muscles.

The ulnar nerve It courses through the forearm between the _________ _________ _________ and _________ _________ _________ muscles.

The ulnar nerve with the ulnar artery in the distal half of the forearm.

The ulnar nerve course with the _________ aftery in the distal half of the _________ .

The ulnar nerve enters the forearm by passing between the two heads of origin of the flexor carpi ulnaris muscle.

The ulnar nerve enters the forearm by passing between the two heads of origin of the _________ _________ _________ muscle.

The ulnar nerve innervates 1.5 muscles in the forearm: a. Flexor carpi ulnaris b. Flexor digitorum profundus (medial half)

The ulnar nerve innervates _________ muscles in the _________ : name them

a. The lateral antebrachial cutaneous nerve supplies the skin of the lateral forearm.

a. The lateral antebrachial cutaneous nerve supplies the skin of the _________ _________ .

the ulnar nerve descends through the medial compartment of the arm, where it has no muscular or cutaneous innervation.

the ulnar nerve descends through the _________ compartment of the arm, where it has _________ muscular or cutaneous innervation.

the ulnar nerve pierces the posterior lamina of the medial intermuscular septum as it passes from the medial to the posterior compartment of the arm.

the ulnar nerve pierces the _______ ______ of the _________ intermuscular septum as it passes from the ________ to the _________ compartment of the arm.

the ulnar nerve then courses posterior to the medial epicondyle

the ulnar nerve then courses posterior to the medial _________