Which of the following is a deep inhalation through a widely opened mouth producing an exaggerated depression of the mandible,the precise cause of which is unknown?
A)sobbing
B)yawning
C)coughing
D)laughing
E)hiccupping

Question

Quizplus · Accepted Answer

Yawning is a deep inhalation through a widely opened mouth producing an exaggerated depression of the mandible. The precise cause of yawning is unknown, but it is thought to be related to fatigue, boredom, or a need for increased oxygen intake. Sobbing is characterized by short breaths in quick succession and rapid exhalations, coughing is a rapid expulsion of air from the lungs to clear the airway, laughing is a response to humor or pleasure, and hiccupping is a sudden and involuntary contraction of the diaphragm muscle.

Which of the Following Is a Deep Inhalation Through a Widely