Human Thoracic Cavity

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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?

It is a distinct and palpable notch Signup and view all the answers

What is the alternative name for the jugular notch?

Suprasternal notch Signup and view all the answers

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

Formation of costo-transverse ligament Signup and view all the answers

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

Transverse process of vertebra Signup and view all the answers

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

Attachment of the intertransverse ligament Signup and view all the answers

How many facets does the tubercle in the neck have?

Two Signup and view all the answers

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

Transverse process of vertebra Signup and view all the answers

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

Rough Signup and view all the answers

What feature separates the subclavian grooves on the first rib?

Scalene tubercle Signup and view all the answers

What is the shape of the first rib?

Curved Signup and view all the answers

How many surfaces does the first rib have?

Two Signup and view all the answers

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

Superior surface Signup and view all the answers

What is the shape of the thoracic cavity?

Irregularly shaped cylinder Signup and view all the answers

What forms the posterior part of the thoracic wall?

Thoracic vertebrae and their intervertebral discs Signup and view all the answers

What separates the thoracic cavity from the abdominal cavity?

Diaphragm Signup and view all the answers

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

Liver Signup and view all the answers

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

Narrow Signup and view all the answers

How many vertebrae are present in a fetus?

33 Signup and view all the answers

What happens to the sacrum vertebrae as they develop?

They fuse together Signup and view all the answers

How many vertebrae fuse together to form the coccyx?

3 Signup and view all the answers

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

5 Signup and view all the answers

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

6 Signup and view all the answers