T2 L2: Nerve and blood supply to the upper limb (CH)
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Questions and Answers

Which artery supplies the upper limb?

  • Left subclavian artery
  • Left common carotid artery
  • Right common carotid artery
  • Right subclavian artery (correct)

    • Where does the subclavian artery pass through?

  • The scalene triangle (correct)
  • The first rib
  • The scapula
  • The clavicle

    • Which artery contributes to the scapular anastomosis?

  • Vertebral artery
  • Dorsal scapular artery (correct)
  • Thyrocervical trunk
  • Brachiocephalic trunk

    • Where does the axillary artery become the brachial artery?

    <p>At the elbow joint</p> Signup and view all the answers

    Which artery supplies the flexor muscles of the arm?

    <p>Brachial artery</p> Signup and view all the answers

    Which artery accompanies the radial nerve in the spiral groove?

    <p>Profunda brachii artery</p> Signup and view all the answers

    Where does the radial artery divide into the radial and ulnar arteries?

    <p>At the wrist joint</p> Signup and view all the answers

    Which vein drains into the axillary vein?

    <p>Cephalic vein</p> Signup and view all the answers

    Which lymph nodes are located in the axillary region?

    <p>Axillary nodes</p> Signup and view all the answers

    What does the brachial plexus carry?

    <p>All of the above</p> Signup and view all the answers

    Which part of the brachial plexus contains axons from multiple spinal nerves?

    <p>Cords</p> Signup and view all the answers

    Which functional group of muscles is innervated by motor axons within the C5 root of the brachial plexus?

    <p>Shoulder abductor (Deltoid)</p> Signup and view all the answers

    Which nerve innervates the rhomboids and levator scapulae muscles?

    <p>Dorsal scapular nerve</p> Signup and view all the answers

    Which nerve is responsible for motor innervation of the biceps brachii muscle?

    <p>Musculocutaneous nerve</p> Signup and view all the answers

    Which nerve innervates the flexor carpi ulnaris muscle?

    <p>Ulnar nerve</p> Signup and view all the answers

    Which nerve is responsible for motor innervation of the deltoid and teres minor muscles?

    <p>Axillary nerve</p> Signup and view all the answers

    Which nerve innervates the lateral palm of the hand and lateral 3 and 1/2 digits?

    <p>Median nerve</p> Signup and view all the answers

    Which nerve is responsible for motor innervation of the posterior arm and posterior forearm?

    <p>Radial nerve</p> Signup and view all the answers

    Which part of the brachial plexus divides into anterior and posterior divisions?

    <p>Trunks</p> Signup and view all the answers

    Which nerve innervates the supinator muscle?

    <p>Radial nerve</p> Signup and view all the answers

    Which artery is the stem artery to the upper limb?

    <p>Subclavian artery</p> Signup and view all the answers

    Which structure is responsible for the arterial supply of the upper limb?

    <p>Arch of the aorta</p> Signup and view all the answers

    Which part of the lecture will cover the scapular anastomosis?

    <p>Both morning and afternoon lectures</p> Signup and view all the answers

    Which part of the lecture will explain the organization of the brachial plexus?

    <p>This afternoon's lecture</p> Signup and view all the answers

    Which artery forms the deep palmar arch in the hand?

    <p>Radial artery</p> Signup and view all the answers

    Which artery contributes to the superficial palmar arch in the hand?

    <p>Ulnar artery</p> Signup and view all the answers

    Which artery is smaller, the radial artery or the ulnar artery?

    <p>Radial artery</p> Signup and view all the answers

    Which space does the radial artery pass through in the hand?

    <p>Anatomical snuff box</p> Signup and view all the answers

    Which artery is a direct branch off of the arch of the aorta?

    <p>Left subclavian artery</p> Signup and view all the answers

    Which muscle attaches to the first rib in front of the subclavian artery?

    <p>Anterior scaling muscle</p> Signup and view all the answers

    Which muscle attaches to the ribs behind the subclavian artery?

    <p>Middle scaling muscle</p> Signup and view all the answers

    Which part of the subclavian artery is medial to the scaling muscle?

    <p>First part</p> Signup and view all the answers

    What artery is the first branch of the subclavian artery and supplies the brain?

    <p>Vertebral artery</p> Signup and view all the answers

    Which artery runs down either side of the sternum on the posterior aspect?

    <p>Internal thoracic artery</p> Signup and view all the answers

    What artery is a branch of the first part of the subclavian artery and contributes to the scapular anastomosis?

    <p>Dorsal scapula artery</p> Signup and view all the answers

    What muscle divides the axillary artery into different parts?

    <p>Pectoralis minor</p> Signup and view all the answers

    Which artery supplies the muscles on the posterior aspect of the arm?

    <p>Deep brachial artery</p> Signup and view all the answers

    Where does the deep brachial artery and the radial nerve travel close to the bone?

    <p>Posterior aspect of the humerus</p> Signup and view all the answers

    Which artery branches from the brachial artery in the cubital fossa?

    <p>Radial artery</p> Signup and view all the answers

    Which artery wraps around the posterior aspect of the humerus and the surgical neck of the humerus?

    <p>Posterior circumflex humeral artery</p> Signup and view all the answers

    What is the name of the branch of the axillary artery that contributes to the scapular anastomosis?

    <p>Sub scapula artery</p> Signup and view all the answers

    Which arteries wrap around the surgical neck of the humerus?

    <p>Anterior and posterior circumflex humeral arteries</p> Signup and view all the answers

    Where does the brachial artery start?

    <p>At the lateral border of Tara's major</p> Signup and view all the answers

    Which artery supplies the flexors of the arm and forearm?

    <p>Brachial artery</p> Signup and view all the answers

    Which artery travels close to the interosseous membrane in the forearm?

    <p>Common interest artery</p> Signup and view all the answers

    What is the name of the muscle in the forearm that is deep to the common interest artery?

    <p>Flexor carpi ulnaris</p> Signup and view all the answers

    Which artery contributes predominantly to the superficial palmar arch?

    <p>Ulnar artery</p> Signup and view all the answers

    What structure does the ulnar artery continue into to form the superficial palmar arch?

    <p>Hand</p> Signup and view all the answers

    Which nerve accompanies the ulnar artery in the forearm?

    <p>Median nerve</p> Signup and view all the answers

    Which artery is referred to as the 'common interest artery'?

    <p>Ulnar artery</p> Signup and view all the answers

    Study Notes

    Upper Limb Blood Supply

    • The subclavian artery supplies the upper limb.
    • The subclavian artery passes through the scalene triangle.

    Scapular Anastomosis

    • The scapular anastomosis is contributed to by the suprascapular artery.
    • The scapular anastomosis is formed by the anastomosis of the suprascapular artery with the deep branch of the transverse cervical artery.

    Axillary Artery

    • The axillary artery becomes the brachial artery at the inferior border of the teres major muscle.
    • The axillary artery supplies the flexor muscles of the arm.

    Brachial Plexus

    • The brachial plexus carries motor and sensory information.
    • The roots of the brachial plexus contain axons from multiple spinal nerves (C5-T1).
    • The C5 root of the brachial plexus innervates the functional group of muscles responsible for shoulder movements.
    • The rhomboids and levator scapulae muscles are innervated by the dorsal scapular nerve.
    • The biceps brachii muscle is innervated by the musculocutaneous nerve.
    • The flexor carpi ulnaris muscle is innervated by the ulnar nerve.
    • The deltoid and teres minor muscles are innervated by the axillary nerve.
    • The lateral palm of the hand and lateral 3 and 1/2 digits are innervated by the radial nerve.
    • The posterior arm and posterior forearm are innervated by the radial nerve.
    • The trunks of the brachial plexus divide into anterior and posterior divisions.

    Arteries

    • The subclavian artery is the stem artery to the upper limb.
    • The subclavian artery is responsible for the arterial supply of the upper limb.
    • The radial artery forms the deep palmar arch in the hand.
    • The ulnar artery contributes to the superficial palmar arch in the hand.
    • The radial artery is smaller than the ulnar artery.
    • The radial artery passes through the anatomical snuffbox in the hand.
    • The subclavian artery is a direct branch off of the arch of the aorta.
    • The scalene muscle attaches to the first rib in front of the subclavian artery.
    • The scalene muscle attaches to the ribs behind the subclavian artery.
    • The medial part of the subclavian artery is medial to the scalene muscle.
    • The vertebral artery is the first branch of the subclavian artery and supplies the brain.
    • The internal thoracic artery runs down either side of the sternum on the posterior aspect.
    • The thyrocervical trunk is a branch of the first part of the subclavian artery and contributes to the scapular anastomosis.

    Other

    • The teres major muscle divides the axillary artery into different parts.
    • The radial collateral artery supplies the muscles on the posterior aspect of the arm.
    • The deep brachial artery and the radial nerve travel close to the bone in the spiral groove.
    • The radial artery is a branch of the brachial artery in the cubital fossa.
    • The profunda brachii artery wraps around the posterior aspect of the humerus and the surgical neck of the humerus.
    • The circumflex scapular artery is a branch of the axillary artery that contributes to the scapular anastomosis.
    • The radial collateral artery and the middle collateral artery wrap around the surgical neck of the humerus.
    • The brachial artery starts at the inferior border of the teres major muscle.
    • The brachial artery supplies the flexors of the arm and forearm.
    • The radial artery travels close to the interosseous membrane in the forearm.
    • The flexor digitorum profundus muscle is deep to the common interosseous artery in the forearm.
    • The ulnar artery continues into the superficial palmar arch.
    • The ulnar artery accompanies the ulnar nerve in the forearm.
    • The common interosseous artery is also referred to as the 'common interosseous artery'.

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    Nerve and blood supply UL 22-23.pptx

    Description

    Test your knowledge of the nerve and blood supply to the upper limb with this quiz by Dr. Catherine Hennessy. Learn about the arterial supply, venous and lymphatic drainage, scapular anastomosis, and more. Get ready to dive into the fascinating world of the upper limb's vascular system!

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