Bronchial bud

Definition

A bronchial bud is an early embryonic structure that develops into the major airways of the lungs, including the bronchi and bronchioles. It forms during the fifth week of embryonic development as an outgrowth from the foregut.

Related terms

Respiratory System: The biological system consisting of specific organs and structures used for gas exchange in animals and plants.

Embryonic Development: The process by which an embryo forms and develops, involving rapid cell division and differentiation.

Bronchi: The two main branches off the trachea that lead into each lung, facilitating the movement of air in and out of the lungs