What type of cartilage makes up the tracheal rings that keep the trachea open?

A) elastic
B) hyaline
C) fibrocartilage
D) Tracheal rings are not made up of cartilage.

Tracheal Rings

C-shaped rings of cartilage that reinforce and maintain the open structure of the trachea, allowing air to flow into the lungs.

Hyaline

A type of smooth, translucent cartilage found at the ends of bones to reduce friction and absorb shock.

Cartilage

A flexible, connective tissue found in various parts of the body including joints, rib cage, and ear, providing support and shock absorption.