Asynch 9- Upper Limb Vasculature
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Questions and Answers

Which artery supplies the serratus anterior muscle?

  • Subscapular artery
  • Anterior circumflex humeral artery
  • Lateral thoracic artery (correct)
  • Posterior circumflex humeral artery
  • What is the main branch of the brachial artery that moves posteriorly towards the radial groove to accompany the radial nerve?

  • Subscapular artery
  • Muscular branches
  • Anterior circumflex humeral artery
  • Deep brachial (profonda brachii) artery (correct)
  • Which artery descends on the lateral side of the forearm under the cover of the brachioradialis muscle?

  • Radial artery (correct)
  • Deep brachial artery
  • Brachial artery
  • Ulnar artery
  • Which artery is the major source of blood supply for the dorsal surface of the hand?

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

    What forms the anterior wall of the axilla?

    <p>Pectoral region</p> Signup and view all the answers

    What is the main artery that supplies the elbow, muscles of the anterior compartment on the medial side, and the deep muscles of the anterior compartment of the forearm?

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

    Which artery forms the deep palmar arch in the palm of the hand?

    <p>Ulnar and Radial arteries</p> Signup and view all the answers

    Which artery passes through the anatomical snuff box in the distal part of the forearm?

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

    What is the main artery that supplies the posterior compartment of the arm?

    <p>Deep brachial (profonda brachii) artery</p> Signup and view all the answers

    Which artery supplies the upper part of the thoracic cavity?

    <p>Superior Thoracic Artery</p> Signup and view all the answers

    Where does the axillary artery start?

    <p>Lateral margin of rib 1</p> Signup and view all the answers

    Which artery passes through the quadrangular space and runs with the axillary nerve?

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

    The second part of the axillary artery is.....

    <p>Covered by muscle anteriorly</p> Signup and view all the answers

    Which artery supplies some parts of the pectoral and deltoid regions?

    <p>Thoraco-acromial Artery</p> Signup and view all the answers

    Which artery lies between the 1st rib and the lower border of the teres major muscle or pectoralis major muscle?

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

    Which artery is the continuation of the subclavian artery?

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

    Where does the brachial artery change to another artery?

    <p>At the cubital fossa</p> Signup and view all the answers

    Which of the following forms the dorsal arterial arch?

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

    Which artery supplies the deltoid region and runs with the axillary nerve?

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

    Which artery is the first branch of the axillary artery?

    <p>Superior Thoracic Artery</p> Signup and view all the answers

    Where does the axillary artery lie relative to the pectoralis minor muscle?

    <p>Before the muscle</p> Signup and view all the answers

    Brachial artery ends in the ______

    Signup and view all the answers

    The posterior circumflex humeral artery passes through the ____________ space

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    Axillary artery will change to brachial artery after passing which of the following muscles?

    <p>Teres Major</p> Signup and view all the answers

    The ulnar artery lies under flexor carpi ulnaris

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

    Brachial artery ends in the ______

    <p>distal part of cubital fossa</p> Signup and view all the answers

    ______ artery descends on the lateral side of the forearm under cover of brachioradialis muscle

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

    ______ artery is major source of blood supply for dorsal surface of the hand

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

    ______ artery lies under flexor carpi ulnaris + accompanied by ulnar nerve on its way

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

    Which artery is the continuation of the subclavian artery?

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

    Arteries derived from the dorsal arterial _____ and palmar arterial _____ will supply the hand. (same word)

    Signup and view all the answers

    Lateral 1.5 digits of the hand are supplied by the _____

    Signup and view all the answers

    Medial 3.5 digits of the hand are supplied by the _______

    Signup and view all the answers

    Radial pulse can be palpated in the anatomical snuff box

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

    Ulnar pulse can be felt in distal cubital fossa

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

    Brachial pulse can be felt in the midarm

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

    Cephalic vein drains the.....

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

    Which of the following veins join to form the Median cubital vein?

    <p>Cephalic and Basilic veins</p> Signup and view all the answers

    Median cubital and Basilic veins are both considered deep veins

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

    Which of the following pass through the axilla?

    <p>Infraclavicular branch of brachial plexus</p> Signup and view all the answers

    Cephalic vein passes through the anatomical snuff box

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

    The lateral wall of the axilla is formed by....

    <p>Upper part of Humerus</p> Signup and view all the answers

    Study Notes

    Upper Limb Vasculature

    • Right subclavian artery supplies the entire upper limb
    • Both right and left subclavian arteries have the same course, going under the clavicle and into the axilla

    Axillary Artery

    • Divided into 3 parts based on its position relative to the pectoralis minor muscle
    • 1st part: lies before the muscle, gives off the Superior Thoracic artery
    • 2nd part: covered by the muscle anteriorly, gives off 2 branches:
      • Thoraco-acromial artery
      • Lateral thoracic artery
    • 3rd part: lies after the muscle, gives off 3 branches:
      • Subscapular artery
      • Anterior circumflex humeral artery
      • Posterior circumflex humeral artery (passes through the quadrangular space and runs with the axillary nerve)

    Brachial Artery

    • Starts at the lower border of the teres major or pectoralis major muscle
    • Runs down the arm, giving off 2 main branches:
      • Deep brachial (profunda brachii) artery
      • Muscular branches (2-5)

    Arteries of the Forearm

    • Brachial artery ends in the distal part of the cubital fossa, dividing into:
      • Ulnar artery (larger of the 2 terminal branches)
      • Radial artery (smaller of the 2 terminal branches)
    • Ulnar artery:
      • Lies under the flexor carpi ulnaris and accompanies the ulnar nerve
      • Supplies the elbow, muscles of the anterior compartment on the medial side, and the deep muscles of the anterior compartment of the forearm
    • Radial artery:
      • Descends on the lateral side of the forearm under the cover of the brachioradialis muscle
      • Supplies the elbow, muscles of the anterior compartment on the lateral side, and muscles on the lateral side of the posterior compartment

    Arteries of the Hand

    • Radial artery is the major source of blood supply for the dorsal surface of the hand
    • Branches of the radial artery form:
      • Dorsal carpal (arterial) arch
      • Dorsal metacarpal arteries
      • Dorsal digital arteries
    • Other branches of the radial artery join with the terminal branches of the ulnar artery to form:
      • Superficial palmar branch of the ulnar artery
      • Deep palmar branch of the ulnar artery and deep branch of the ulnar nerve

    Surface Anatomy of Upper Limb and Venous Return of Upper Extremity

    • Venous system of the upper limb drains deoxygenated blood from the hand, forearm, and arm
    • Anatomically divided into:
      • Superficial veins (run within superficial fascia of the upper limb)
      • Deep veins (run with arteries and usually take the name of the region)

    Upper Limb Area of Transition

    • Axilla: a 4-sided pyramidal space situated between the upper part of the arm and the chest wall
    • Cubital fossa: a triangular impression in front of the elbow joint bounded by the brachioradialis and pronator
    • Carpal tunnel: 9 tendons and 1 nerve

    Contents of Axilla

    • Axillary artery and its branches
    • Axillary vein and its tributaries
    • Infraclavicular part of the brachial plexus
    • Axillary Lymph nodes: receives lymph from the upper limb and chest wall

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    Description

    Test your knowledge of the right subclavian artery and the course of the axillary artery as it divides into three parts. Learn about the transitional areas and blood supply of the upper extremity.

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