Human Thoracic Cavity

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Questions and Answers

What is the characteristic feature of the superior surface?

  • It is concave posteriorly
  • It is curved anteriorly
  • It is expanded laterally (correct)
  • It is narrow and pointed

What is the name of the notch found in the midline of the superior surface?

  • Jugular notch (correct)
  • Mediastinal notch
  • Jugular foramen
  • Suprasternal notch

What is the location of the jugular notch on the superior surface?

  • At the lateral edge
  • At the anterior edge
  • At the posterior edge
  • In the midline (correct)

What is true about the jugular notch?

<p>It is a distinct and palpable notch (A)</p> Signup and view all the answers

What is the alternative name for the jugular notch?

<p>Suprasternal notch (A)</p> Signup and view all the answers

What is the function of the lateral facet of the tubercle in the neck?

<p>Formation of costo-transverse ligament (A)</p> Signup and view all the answers

What is the articular part of the tubercle in the neck attached to?

<p>Transverse process of vertebra (C)</p> Signup and view all the answers

What is the non-articular part of the tubercle in the neck involved in?

<p>Attachment of the intertransverse ligament (D)</p> Signup and view all the answers

How many facets does the tubercle in the neck have?

<p>Two (A)</p> Signup and view all the answers

What is the medial facet of the tubercle in the neck attached to?

<p>Transverse process of vertebra (B)</p> Signup and view all the answers

What is the characteristic of the superior surface of the first rib?

<p>Rough (B)</p> Signup and view all the answers

What feature separates the subclavian grooves on the first rib?

<p>Scalene tubercle (C)</p> Signup and view all the answers

What is the shape of the first rib?

<p>Curved (C)</p> Signup and view all the answers

How many surfaces does the first rib have?

<p>Two (C)</p> Signup and view all the answers

What is the location of the scalene tubercle on the first rib?

<p>Superior surface (A)</p> Signup and view all the answers

What is the shape of the thoracic cavity?

<p>Irregularly shaped cylinder (A)</p> Signup and view all the answers

What forms the posterior part of the thoracic wall?

<p>Thoracic vertebrae and their intervertebral discs (B)</p> Signup and view all the answers

What separates the thoracic cavity from the abdominal cavity?

<p>Diaphragm (A)</p> Signup and view all the answers

Which of the following structures is NOT part of the thoracic cavity?

<p>Liver (C)</p> Signup and view all the answers

What is the shape of the thoracic cavity's superior opening?

<p>Narrow (A)</p> Signup and view all the answers

How many vertebrae are present in a fetus?

<p>33 (B)</p> Signup and view all the answers

What happens to the sacrum vertebrae as they develop?

<p>They fuse together (C)</p> Signup and view all the answers

How many vertebrae fuse together to form the coccyx?

<p>3 (D)</p> Signup and view all the answers

What is the normal number of fused vertebrae in the sacrum?

<p>5 (C)</p> Signup and view all the answers

What is the total number of vertebrae that fuse together to form the sacrum and coccyx?

<p>6 (C)</p> Signup and view all the answers

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