Axillary Artery Branches Quiz
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Questions and Answers

How many branches arise from the second part of the axillary artery?

  • Two (correct)
  • Four
  • One
  • Three
  • Which artery supplies the pectoral muscles as well as the breast?

  • Pectoral branch (correct)
  • Superior thoracic artery
  • Deltoid branch
  • Acromial branch
  • Where does the acromial branch of the thoracoacromial artery cross?

  • Coracoid (correct)
  • Deltopectoral groove
  • Axillary artery
  • Clavipectoral fascia
  • Where does the superior thoracic artery arise from?

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

    In which part of the axillary artery do three branches arise?

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

    What is the primary function of the lungs in the respiratory system?

    <p>Extract oxygen from the air and transfer it into the bloodstream</p> Signup and view all the answers

    Where are the lungs located in mammals and most vertebrates?

    <p>Near the backbone on either side of the heart</p> Signup and view all the answers

    What is the role of the pleurae in the respiratory system?

    <p>Reduce friction between the lungs and chest wall during breathing</p> Signup and view all the answers

    How is respiration driven in mammals, reptiles, and birds?

    <p>Different muscles support and foster breathing</p> Signup and view all the answers

    In earlier tetrapods, how was air driven into the lungs?

    <p>Via buccal pumping by the pharyngeal muscles</p> Signup and view all the answers

    Study Notes

    Axillary Artery

    • Three branches arise from the second part of the axillary artery.
    • The pectoral branch of the thoracoacromial artery supplies the pectoral muscles and the breast.
    • The acromial branch of the thoracoacromial artery crosses the superior aspect of the shoulder.
    • The superior thoracic artery arises from the first part of the axillary artery.

    Respiratory System

    • The primary function of the lungs is to facilitate gas exchange in the respiratory system.
    • In mammals and most vertebrates, the lungs are located in the thoracic cavity.
    • The pleurae play a crucial role in the respiratory system by providing a lubricated surface for the lungs to expand and contract during breathing.
    • In mammals, reptiles, and birds, respiration is driven by a negative pressure system, where the expansion of the thoracic cavity creates a vacuum that draws air into the lungs.
    • In earlier tetrapods, air was driven into the lungs through a positive pressure system, where the throat muscles pushed air into the lungs.

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    Description

    Test your knowledge of the branches of the axillary artery with this quiz. Identify the branches arising from each part of the artery and deepen your understanding of its anatomy.

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