Anatomy Upper Limb Flashcards
Demonstrate dermatomes of upper limb on yourself
C4, C5, C6, C7, C8, T1, T2
Demonstrate cutaneous innervation of the hand
median nerve, ulnar nerve, radial nerve
Describe the drainage of the superficial lymphatics of the upper limb
- superficial lymphatics originate from lymphatic plexus in the hand
- ascend with superficial veins and terminate in the apical axillary lymph nodes
cephalic vein - lymph nodes enter the apical axillary lymph nodes
basilic vein - lymph nodes enter the cubital lymph nodes
Describe the drainage of the deep lymphatics of the upper limb
-ascend with the major deep veins in the upper limb and terminate in the humeral (lateral) axillary lymph nodes
radial vein
ulnar vein
How does the right and left subclavian lymphatic trunks drain
-right subclavian lymphatic trunk is joined by the right jugular trunk to form the right lymphatic duct
joins the right venous angle to enter the right subclavian vein
-left subclavian lymphatic trunk joins the thoracic duct
enters the left brachiocephalic vein
Describe the superficial venous drainage of the upper limb
- dorsal and palmar networks drain to cephalic (anterolateral) and basilic (posteromedial) veins
- connected in cubital fossa by median cubital vein
- basilic vein goes deep and joins brachial vein to form axillary vein
- cephalic begins in roof of anatomic snuff box and pierces clavipectoral fascia to join axillary vein
Boundaries of the axilla
- base = level of 4th rib, forms the armpit
- apex = first rib, clavicle, superior scapula
- anterior wall = pectoralis minor and major, clavipectoral fascia
- posterior wall = scapula, subscapularis, teres major, latissimus dorsi
- lateral wall = intertubercular sulcus of humerus
- medial wall = 1-4th rib and serratus anterior
Contents of the axilla
axillary sheath (axillary artery, axillary vein, brachial plexus), axillary lymph nodes, fat
