Question

Cartilaginous rings in trachea are incomplete at which surface?
A. Dorsal
B. Ventral
C. Lateral
D. Ventrolateral

Answer 1

Hint: Dorsal, ventral, lateral, and ventrolateral are the directional references which are used in the anatomy. It provides an idea about the position of the body part.

Complete answer:
-The trachea is surrounded by the c-shaped cartilaginous ring present at the dorsal surface. The main purpose of these C-shaped or horse-shoe shaped rings is that they prevent the collapse of the trachea. The trachea is also known as windpipe that is made from the cartilage. The cartilaginous tube connects the larynx to the lungs. This allows the passage of the air from nostrils to the lungs.
-Cartilaginous rings around the trachea are called tracheal cartilage. Trachea consists of the 20 cartilaginous rings.
-The term ‘dorsal’ meaning present at the upper side or back of the body. The term ‘ventral’ meaning present at the underside of the body or the abdominal region.
-The term ‘lateral’ meaning present on one side of the body. The term ‘ventrolateral’ meaning present at the junction of the ventral and lateral sides.
-The trachea is 4 inches long tube, and its diameter is less than a half-inch.
-The trachea is a part of the respiratory system of the body. The respiratory system can be defined as the organ system, which can help in breathing. The respiratory system consists of the nose, larynx, trachea, and lungs.

Hence, the correct answer is option (A).

Note: The position of the cartilaginous ring on the trachea prevents the collapse of the trachea. These cartilaginous rings are made from the hyaline cartilage. The cartilaginous rings are found to be C-shaped which helps the trachea to collapse slightly at the entry so that food can move down the esophagus.