Download App

BIOLOGY [5 Mark Question Answer]

Respiratory System · ICSE STD 9 (ICSE - English Medium). 1 questions.

Questions

[5 Mark Question Answer]

🎯

Test yourself on this topic

1 question · timed · auto-graded

Question 15 Marks
Give the structure of a trachea.
Answer
Structure of Trachea: It is a long thin air tube about 11 cm long and 2.5 cm broad. Its wall is semi-transparent and composed of 4 layers-
  1. Mucosa
  2. Submucosa
  3. Cartilaginous layer
  4. Adventitia
The trachea in the thoracic region bifurcates into two short tubes called primary bronchi which enters into the lungs.
View full question & answer→
Generate Paper FreeAll Respiratory System topics
[5 Mark Question Answer] - BIOLOGY STD 9 Questions - Vidyadip