GENERAL HISTOLOGY

EPITHELIUM

EPITHELIAL TISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This tissue is ONLY found lining the upper respiratory tract (trachea, bronchi, and bronchioles). The cells have cilia in order to sweep debris out of the lungs.
A
Simple Squamous Epithelium
B
Stratified Columnar Epithelium
C
Transitional Epithelium
D
Psuedostratified Columnar Epithelium
Explanation: 

Detailed explanation-1: -The conducting passageways of the respiratory system (nasal cavity, trachea, bronchi and bronchioles) are lined by pseudostratified columnar epithelial tissue, which is ciliated and which includes mucus-secreting goblet cells.

Detailed explanation-2: -The majority of the respiratory tree, from the nasal cavity to the bronchi, is lined by pseudostratified columnar ciliated epithelium. The bronchioles are lined by simple columnar to the cuboidal epithelium, and the alveoli possess a lining of thin squamous epithelium that allows for gas exchange.

Detailed explanation-3: -The respiratory epithelium lining the upper respiratory airways is classified as ciliated pseudostratified columnar epithelium.

Detailed explanation-4: -Pseudostratified epithelium is also sometimes referred to as respiratory epithelium, since ciliated pseudostratified columnar epithelia is mainly found in the larger respiratory airways of the nasal cavity, trachea and bronchi.

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