Boundaries of the quadrangular space?
Superior: teres minor
Inferior: teres major
Lateral: surgical neck of humerus
Medial: long head of triceps
Which structures passes through the quadrangular space?
Axillary nerve and posterior humeral circumflex vessels
Boundaries of the triangular space (upper)?
Superior: teres minor
Medial: Teres major
Lateral: Long head of triceps
Which structures passes through the triangular space (upper)?
Circumflex scapular vessels
Boundaries of the triangular space (lower)? Transmits?
Superior: teres major
Medial: Long head of triceps
Lateral: Medial head of triceps
Transmits radial nerve and profunda brachii (deep brachial) artery
Boundaries of the cubital fossa?
Inferiomedial: Pronator teres
Superiolateral: Biceps brachii
Superiomedial: Medial intermuscular septum
Floor: Supinator and brachialis
Superficial structures in the cubital fossa?
Superficial veins: Cephalic (lateral) and basilic (medial). Connected together in the cubital fossa by the median cubital vein. The anterior antebrachial vein also drain to the median cubital vein.
Superficial nerves: Cutaneous nerves: lateral and medial antebrachial cutaneous nerves.
Deep structures in the cubital fossa? from lateral to medial. Branches in the cubital fossa?
Radial nerve, biceps tendon, brachial artery and median nerve. Radial nerve divides into deep and superficial branch. Brachial artery divides into inferior collateral ulnar, ulnar and radial aa. Ulnar and radial gives of recurrent ulnar and reccurrent radial aa.
What is the boundaries of the carpal tunnel?
Roof: Flexor retinaculum
Medial: Pisiform and hook of hamate
Floor: capitate and trapezoid
Lateral: Tubercle of scaphoid and tubercle of trapezoid
What passes through the carpal tunnel?
1. Common tendinous sheath with the tendons of flexor digitorum profundus and flexor digitorum superficialis.
2. Median nerve
3. Tendon of flexor pollicis longus
Boundaries of the anatomical snuffbox?
Radial side: Extensor pollicis brevis and abductor pollicis longus
Ulnar side: Extensor pollicis longus
Roof: Extensor retinaculum
What passes in the anatomical snuffbox?
Superficial: Cephalic vein
Deep: Radial artery
What is the extensor expansion?
Extension of the extensor tendon over the metacarpophalangeal joint
What crosses superficial to the flexor retinaculum?
Ulnar nerve, ulnar artery, palmaris longus tendon and palmar cutaneous branch of the median nerve
What is the cutaneous nerves of the upper shoulder region?
Supraclavicular nerve from cervical plexus. Innervates skin over the upper pectoral, deltoid and outer trapezius areas.
What is the cutaneous nerves of the arm?
1. Medial brachial cutaneous nerve (from medial cord of brachial plexus)
2. Lateral brachial cutaneous nerve (from lateral cord of brachial plexus)
3. Posterior brachial cutaneous nerve (from radial nerve)
What is the cutaneous nerves of the forearm?
1. Medial antebrachial cutaneous nerve (from the medial cord of brachial plexus)
2. Lateral antebrachial cutaneous nerve (from the muscuolocutaneous nerve)
3. Posterior antebrachial cutaneous nerve (from the radial nerve)
What is the intercostobrachial nerve?
It is the lateral cutaneous branch of the second intercostal nerve emerging from the second intercostal space and may communicate with the medial brachial cutaneous nerve
What is the boundaries of the axilla?
1. Medial wall: Upper ribs and their intercostal muscles + serratus anterior muscle
2. Lateral wall: Intertubercular groove on humerus
3. Posterior wall: Subscapularis, teres major and latissimus dorsi
4. Anterior wall: Pectoralis major and minor and clavipectoral fascia
5. Base: Axillary fascia and skin
6. Apex: Interval between the clavicle, first rib and upper border of scapula