Biology Respiration / Gaseous Exchange SZABMU 2022
PMDC Verified Question 14 of 34
The area between the two lungs is called:
A
Periosteum
B
Infundibulum
C
Hilum
D
Mediastinum
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Mediastinum
Concept: The thoracic cavity is partitioned into specific anatomical compartments housing vital organs.

Solution:
  • The central compartment of the thoracic cavity, situated safely between the two pleural cavities (which house the lungs), is called the mediastinum.
  • It acts as a protective housing for the heart, great vessels (aorta, vena cava), esophagus, and trachea.


Why other options are incorrect:
  • Periosteum: A dense fibrous membrane covering the surfaces of bones.
  • Infundibulum: A funnel-shaped cavity or structure, often referring to a part of the brain (pituitary stalk) or fallopian tube.
  • Hilum: The specific depression on a single lung where bronchi and blood vessels enter and exit, not the entire area between the lungs.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Previous Question All Respiration / Gaseous Exchange MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App