The V-shaped notch in the midline of the neck that keeps the tract open is called the laryngeal prominence.
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What is the anatomy of the respiratory tract in the Larynx?</h3>
The larynx is a sophisticated hollow structure positioned near the neck's anterior midline. The larynx transports air to the lower respiratory tract and seals the airway, primarily during swallowing, to avoid food aspiration.
The larynx is made up of nine separate cartilages, including three big unpaired cartilages which are:
- Cricoid,
- Thyroid, and
- Epiglottis.
and three paired smaller cartilages called:
- Arytenoid,
- Corniculate, and
- Cuneiform.
The cartilage's broad flat right and left halves combine apically in the midline to produce a V-shaped anterior projection known as the laryngeal prominence.
Learn more about the anatomy of the Larynx here:
brainly.com/question/1199917
They are interested in the process of change
The correct answer is an "internal factor"
Internal factor is the descriptor used to describe a cause for conflict or instability that originates within a nation.