Respiratory Muscles: Diaphragm Anatomy and Function

Which muscle constitutes the bulk of the tongue mass?

What muscle is responsible for elevating the larynx and pharynx during swallowing and speaking?

Which muscle is the only infrahyoid muscle that elevates the larynx?

What muscle is replaced by a smooth muscle sheet that fills posterior gaps of the trachea?

Which muscle is responsible for widening/abducting the glottis?

What muscle contracts to narrow/adduct the glottis?

Which muscle overlaps the Superior Pharyngeus and Middle Pharyngeus muscles?

What muscle is responsible for relaxing to allow the soft palate to occlude the airway?

Which muscle is located at C6 and functions as the esophageal sphincter?

What muscle is responsible for opening the oropharynx?

Which muscle contracts to widen the inlet of the larynx?

What muscle is responsible for narrowing the inlet of the larynx?

What is the primary muscle responsible for inspiration?

From which vertebrae do the crura of the diaphragm originate?

What causes the dome of the diaphragm to rise as high as the level of the 4th intercostal space at rest?

Which muscle can assist in inspiration by elevating the rib cage?

Which nerve descends vertically on the anterior scalene muscle?

Which muscle depresses the ribs facilitating active expiration?

What causes the dome of the diaphragm to descend 2 spaces bilaterally when contracted?