What is the opening of the larynx called quizlet?

Terms in this set (96) The glottis is the opening from the larynx to the trachea.

Is epiglottis the opening of the larynx?

The epiglottis sits at the entrance of the larynx. It is shaped like a leaf of purslane and has a free upper part that rests behind the tongue, and a lower stalk (Latin: petiolus). The stalk originates from the back surface of the thyroid cartilage, connected by a thyroepiglottic ligament.

What is the entrance to the larynx?

The laryngeal inlet (laryngeal aditus, laryngeal aperture) is the opening that connects the pharynx and the larynx.

What is the glottic opening?

The glottis is the opening between the vocal folds in the larynx that is generally thought of as the primary valve between the lungs and the mouth; the states of the glottis are the positions generally considered to characterize the different possible shapes of this opening.

Which structure protects the opening into the larynx?

The epiglottis is a leaf-shaped cartilage that moves down to form a lid over the glottis and protect the larynx from aspiration of foods or liquids being swallowed.

Which muscle opens the inlet of larynx?

We conclude that the posterior cricoarytenoid opens the laryngeal airway. The cricothyroid together with the posterior cricoarytenoid accentuates this opening. The larynx is also opened by the geniohyoid, mylohyoid, sternothyroid, and middle constrictor.

Where does the larynx start?

Location. In adult humans, the larynx is found in the anterior neck at the level of the cervical vertebrae C3–C6. It connects the inferior part of the pharynx (hypopharynx) with the trachea.

What is the windpipe called?

Also called trachea. … Enlarge. Anatomy of the respiratory system, showing the trachea and both lungs and their lobes and airways.

What is inlet larynx?

laryngeal inlet the aperture between the pharynx and larynx, bounded by the superior edges of the epiglottis (anteriorly), the aryepiglottic folds (laterally), and the mucosa between the arytenoids (posteriorly).

Does the larynx open and close?

How does the larynx produce your voice? The lining of the larynx has folds across it about halfway down. … The gap between the two vocal cords is called the glottis. By using ligaments and muscles, the vocal cords can be opened and closed, tensed and held together closely – which looks like the curtains being closed.

What are the pharyngeal muscles?

The pharyngeal muscles are a group of muscles that form the pharynx, which is posterior to the oral cavity, determining the shape of its lumen, and affecting its sound properties as the primary resonating cavity. The pharyngeal muscles (involuntary skeletal) push food into the esophagus.

What is the aryepiglottic fold?

The aryepiglottic folds extend between the arytenoid cartilage and the lateral margin of the epiglottis on each side and constitute the lateral borders of the laryngeal inlet. They are involved in physiologic closure mechanisms of the larynx and in pathologic conditions such as inspiratory stridor.

What is aryepiglottic sphincter?

The aryepiglottic muscle, or aryepiglotticus muscle is an intrinsic muscle of the larynx. The muscle originates from the muscular process of arytenoid cartilage and inserts to the aryepiglottic fold and lateral border of epiglottis. … The muscle adducts arytenoid cartilages and acts as a sphincter on the laryngeal inlet.

Where is the vestibular fold?

The vestibular fold (ventricular fold, superior or false vocal cord) is one of two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the vestibular ligament, which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the epiglottis, and behind to …

Where are AE folds?

larynxThe aryepiglottic folds are triangular folds of mucous membrane of the larynx. They enclose ligamentous and muscular fibres. They extend from the lateral borders of the epiglottis to the arytenoid cartilages, hence the name ‘aryepiglottic’.

What are the vocal folds?

The vocal cords (also called vocal folds) are two bands of smooth muscle tissue found in the larynx (voice box). The vocal cords vibrate and air passes through the cords from the lungs to produce the sound of your voice.

What is Pyriform Fossae?

The pyriform sinus (also spelled piriform sinus and also known as the pyriform recess, pyriform fossa, and smuggler’s fossa) is the pear-shaped subsite of the hypopharynx located posterolaterally to either side of the laryngeal opening.

What is the thyroarytenoid muscle?

Thyroarytenoid is a wide, paired muscle located between the thyroid and arytenoid cartilages of the larynx. … Thyroarytenoid, cricothyroid and vocalis muscles work as a group to regulate the length and tension of the vocal folds.