First slide

Human Respiratory System

Question

Incomplete cartilaginous rings support

Easy

A

Trachea only
B

Trachea, bronchi and all bronchioles
C

Trachea and bronchi only
D

Trachea, bronchi and initial bronchioles

Solution

The tracheae, primary, secondary and tertiary bronchi, and initial bronchioles are supported by incomplete cartilaginous rings.

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