ANATOMY

Detailed explanation-1: -The connective tissue, cartilage, and smooth muscle of these structures develop from the splanchnic mesenchyme surrounding the foregut. The endoderm lining the laryngotracheal tube gives rise to the epithelium and glands of the larynx and trachea.

Detailed explanation-2: -A normal trachea (windpipe) has many rings made of cartilage (a strong and flexible tissue). These rings are C-shaped and support the trachea but also allow it to move and flex when your child breathes.

Detailed explanation-3: -Larynx-also known as the voice box, the larynx is a cylindrical grouping of cartilages, muscles and soft tissue that contains the vocal cords. The larynx is the upper opening into the windpipe (trachea), the passageway to the lungs. Epiglottis-a flap of soft tissue and cartilage located just above the vocal cords.

Detailed explanation-4: -The larynx is a cartilaginous skeleton, some ligaments, and muscles that move and stabilize it and a mucous membrane. The laryngeal skeleton is nine cartilages: the thyroid cartilage, cricoid cartilage, epiglottis, arytenoid cartilages, corniculate cartilages, and cuneiform cartilages.

Detailed explanation-5: -The hyaline cartilage in the tracheal wall provides support and keeps the trachea from collapsing. The posterior soft tissue allows for expansion of the esophagus, which is immediately posterior to the trachea.