human body course upper limb nerves and vessels...
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HUMAN BODY COURSE
UPPER LIMB NERVES AND VESSELS
October 22, 2010
F. UPPER LIMB MUSCLES5 Anterior brachial compartment5. Anterior brachial compartment
ANTERIOR BRACHIAL COMPARTMENT
General function: Flexors of the shoulder, elbow, or both
Muscles: Coracobrachialis, biceps brachii, brachialis
Innervation: Musculocutaneous nerve
Blood supply: Brachial artery
BREAST AND ANTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 23
F. UPPER LIMB MUSCLES6 Anterior antebrachial compartment6. Anterior antebrachial compartment
ANTERIOR ANTEBRACHIAL COMPARTMENT
Superficial group
General function: Flexors of the wrist digits or both PronationGeneral function: Flexors of the wrist, digits or both. Pronation.
Muscles: Pronator teres, palmaris longus, flexor carpi radialis, flexor carpi ulnaris, flexor digitorum superficialis
Innervation: Median nerve except flexor carpi ulnaris
Blood supply: radial and ulnar arteriespp y
ANTERIOR ANTEBRACHIAL COMPARTMENT
Deep group
General function: Flexors of the wrist, digits or both. Pronation.
Muscles: Flexor pollicis longus, flexor digitorum profundus, pronator quadratus
Innervation: Median nerve except ulnar portion of flexor digitorum profundus
Blood supply: Radial and ulnar arteriesBlood supply: Radial and ulnar arteries
BREAST AND ANTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 24
E. NERVES2 Radial nerve2. Radial nerve
POSTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 27
E. NERVES2 Axillary nerve2. Axillary nerve
POSTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 28
G. UPPER LIMB INNERVATION3 Musculocutaneous nerve3. Musculocutaneous nerve
BREAST AND ANTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 27
G. UPPER LIMB INNERVATION4 Median nerve4. Median nerve
BREAST AND ANTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 28
G. UPPER LIMB INNERVATION5 Ulnar nerve5. Ulnar nerve
BREAST AND ANTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 29
F. CIRCULATION1 Upper limb arterial supply1. Upper limb arterial supply
Continuations and branches of the SUBCLAVIAN ARTERY provide blood to the upper limb.
The AXILLARY ARTERY is the direct continuation of the subclavian artery distal to the inferior border of the first rib.
The BRACHIAL ARTERY is the direct continuation of the axillary artery distal to the inferior border of the teres major muscle. The DEEP BRACHIAL ARTERY is a branch of the brachial artery.
The RADIAL ARTERY and ULNAR ARTERY, the terminal branches of the brachial artery, begin distal to the cubital fossa and end in two anastomoses in the palmar handpalmar hand.
The ulnar artery is the primary contribution to the SUPERFICIAL PALMAR ARCH.
The radial artery is the primary contribution to the DEEP PALMAR ARCH.
POSTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 29
F. CIRCULATION2 Upper limb venous and lymphatic drainage2. Upper limb venous and lymphatic drainage
Blood from deeper structures of the upper limb drains to DEEP VEINS accompanying arteries with the same names.
Blood from superficial structures of the upper limb drains to SUPERFICIAL VEINSwith no accompanying arteries. The superficial veins begin at the DORSAL VENOUS p y g p gARCH of the hand.
The CEPHALIC VEIN leaves the radial side of the dorsal arch and runs superiorly to join the axillary vein.
The BASILIC VEIN leaves the ulnar side of the dorsal venous arch and runs superiorly to join the basilic vein in the brachium
LYMPH from the upper limb drains into lymphatic vessels travelling with both deep and superficial veins. Lymph nodes are sparse in the upper limb. Groups of nodes are found in the cubital fossa and in the axilla.
POSTERIOR UPPER LIMB ©Trudy Van Houten, September 1, 2010 Page 30
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