Thorax Part 1: Body Wall
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Questions and Answers

Which spinal nerves supply the midline strip of ventral skin below the 2nd rib?

  • T12
  • T2 - L1 (correct)
  • L1
  • C4
  • Which nerve descends over the iliac crest to supply the skin of the buttock?

  • Cervical plexus
  • Ilioinguinal
  • Supraclavicular
  • Iliohypogastric (correct)
  • Which branches emerge in the midaxillary line to innervate an oblique zone of skin?

  • Posterior rami branches
  • Lateral cutaneous branches of the spinal nerves (correct)
  • Cervical plexus branches
  • Supraclavicular branches
  • Which spinal nerves supply the lateral strip of skin in the thorax and lumbosacral parts?

    <p>T2 - L1</p> Signup and view all the answers

    Which part of the body wall muscles is innervated by the posterior rami?

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

    From which structure are the myotomes of the trunk developed?

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

    What allows the subcutaneous fat to slide freely over the underlying thoracic wall and muscles?

    <p>Membranous layer of superficial fascia</p> Signup and view all the answers

    Where does the superior epigastric artery origionate?

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

    Where does the venous return of the abdominal wall below the level of the umbilicus pass to?

    <p>Great saphenous vein in the groin</p> Signup and view all the answers

    Which nodes receive lymphatic drainage from the anterior abdominal wall and perineum below the umbilicus?

    <p>Medial group of superficial inguinal nodes</p> Signup and view all the answers

    What might distend in portal obstruction and lead to 'caput Medusae' if it spreads to superficial veins?

    <p>Para-umbilical veins</p> Signup and view all the answers

    What does the thoraco-epigastric vein provide communication between?

    <p>Lateral thoracic vein and superficial epigastric vein</p> Signup and view all the answers

    Which nodes receive lymphatic drainage from above the level of the umbilicus?

    <p>Pectoral lymph nodes</p> Signup and view all the answers

    The scarpa fascia continues over what structures as the fascia of Colles?

    <p>[Penis and scrotum]</p> Signup and view all the answers

    What attaches to the sides of the body of the pubic bone and continues over the penis and scrotum?

    <p>Superficial perineal fascia of Colles</p> Signup and view all the answers

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