Question

question 12
1 pts
the mediastinum contains all of the following except the:
○ trachea.
○ venae cavae.
○ right lung.
○ esophagus.

question 13
1 pts
two major cavities of the human body are:
○ ventral/dorsal.
○ inferior/superior.
○ visceral/parietal.
○ axial/appendicular.

question 14
1 pts
a surgeon removing a gallbladder should know to find it in the _____ region.
○ right lumbar
○ right hypochondriac
○ hypogastric
○ umbilical

Explanation:

Question 12

The mediastinum is the central compartment of the thoracic cavity. It contains the trachea, venae cavae, and esophagus. The lungs (right and left) are in the pleural cavities, not the mediastinum. So the right lung is not in the mediastinum.

The two major cavities of the human body are the ventral (anterior) cavity (containing thoracic, abdominal, pelvic) and dorsal (posterior) cavity (containing cranial and spinal). Ventral/dorsal are the major body cavities. Inferior/superior are directional terms, visceral/parietal are serous membrane layers, axial/appendicular are body region classifications (not cavities).

The gallbladder is located in the right hypochondriac region (upper right abdominal region, below the ribcage). The right lumbar is lower, hypogastric is lower abdomen, umbilical is around the navel. So the correct region is right hypochondriac.

Answer:

C. right lung

Question 13