Yawning: an early manifestation of vasovagal reflex.
Cronin
T G
TG
D001794:Blood Pressure; D006801:Humans; D011859:Radiography / Q000009:adverse effects; D012018:Reflex / Q000502:physiology*; D014630:Vagus Nerve / Q000502:physiology*; D015000:Yawning