Biology Respiration / Gaseous Exchange NUMS 2022
PMDC Verified Question 13 of 34
The following part is common in both digestive system and respiratory system of human beings:
A
Trachea
B
Larynx
C
Pharynx
D
Esophagus
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Pharynx
Concept: The anatomical pathways for food and air briefly intersect in the throat before diverging.

Solution:
  • The pharynx is a muscular tube located at the back of the mouth and nasal cavity.
  • It acts as a dual-purpose thoroughfare: it funnels inhaled air toward the larynx (respiratory) and ingested food/liquids toward the esophagus (digestive).
  • The epiglottis ensures that food correctly bypasses the airway during swallowing.


Why other options are incorrect:
  • Trachea & Larynx: Strictly belong to the respiratory tract.
  • Esophagus: Strictly belongs to the digestive tract.

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.

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