Extremities Part 6 Flashcards
Following the flow of blood from the heart what is the first branch of the aortic arch?
Brachiocephalic trunk
The brachiocephalic trunk bifurcates into what two arteries?
•Right common carotid artery
•Right subclavian artery
Following the flow of blood from the heart what is the second branch of the aortic arch?
Left common carotid artery
Following the flow of blood from the heart what is the third branch of the aortic arch?
Left subclavian artery
What region of the body do the subclavian arteries supply?
•Upper extremity
•Some thoracic structures
•The brain via the vertebral arteries
What artery is the main arterial supply of the upper extremity?
Subclavian artery
What is the lateral border of the subclavian artery?
The lateral border of the first rib
What artery extends from the lateral border of the first rib to the inferior border of the teres major?
Axillary artery
What arteries form an anastomosis around the surgical neck of the humerus?
Humeral circumflex arteries
What artery extends from the inferior border of the teres major to its bifurcation in the cubical fossa?
Brachial artery
What artery supplies the triceps brachii and other posterior structures of the brachium?
Deep brachial artery
What are the two main arteries of the forearm?
Ulnar and radial arteries
What artery of the forearm is readily palpated for a pulse?
Radial artery
What are the two anastomoses that lie within the palm and supply the hand?
Superficial and deep palmar arches
What are the two groups of veins in the upper extremity?
Superficial and deep
What superficial network of veins lies on the dorsum of the hand?
Dorsal venous arch
What superficial vein runs adjacent to the medial surface of the upper extremity?
Basilic vein
What superficial vein runs alongside the lateral aspect of the upper limb?
Cephalic vein
The cephalic vein drains into what vein?
Axillary vein
What vein joins the cephalic and basilic veins in the cubital fossa?
Median cubital vein
What network of deep veins drains the hand?
Palmar venous arches
What deep veins run parallel to the main arteries of the forearm?
Radial and ulnar veins
The deep veins of the forearm converge to form what vein?
Brachial vein
The deep veins of the forearm converge to form what vein?
Brachial vein
What deep vein is formed by the convergence of the brachial and basilic veins?
Axillary vein
What vein has the lateral border of the first rib as its lateral border?
Subclavian vein
The external jugular vein drains into what vein?
Subclavian vein
Veins that drain the head neck and upper limbs merge to form what vessels?
Left and right brachiocephalic veins
The convergence of the internal jugular vein and the subclavian vein forms what vein?
Brachiocephalic vein
The convergence of the internal jugular vein and the subclavian vein forms what vein?
Brachiocephalic vein
The convergence of the brachiocephalic veins forms what vein?
Superior vena cava
The brachial plexus arises from what spinal nerves?
C5-T1
Where is the brachial plexus located?
Lateral neck and axilla
What regions of the body does the brachial plexus innervate?
Pectoral girdle and upper extremity
What is the motor innervation of the axillary nerve?
•Deltoid
•Teres minor
What is the cutaneous innervation of the axillary nerve?
Superolateral portion of the arm
What is the motor innervation of the median nerve?
•Anterior forearm muscles
•Thenar muscles
•Two lateral lumbricals
What is the cutaneous innervation of the median nerve?
Palmar side of the lateral 3 1/2 fingers and the lateral one half of the ring finger and from the dorsal tips of the same fingers
What is the motor innervation of the musculocutaneous nerve?
Anterior arm muscles
What is the cutaneous innervation of the musculocutaneous nerve?
Lateral surface of the forearm
What is the motor innervation of the radial nerve?
•Posterior arm muscles
•Posterior forearm muscles
What is the cutaneous innervation of the radial nerve?
Posterior arm and forearm surface and the dorsolateral side of the hand
What is the motor innervation of the ulnar nerve?
•Some of the anterior forearm muscles
•Intrusive muscles of the hand
What is the cutaneous innervation of the ulnar nerve?
Dorsal and palmar aspects of the medial 1 1/2 fingers
