Time delays of reflections from the ridges of the pinna. The first chart (left) shows the delays (in microseconds ... Foundations of Modem Auditory Theory, Academic Press, 1972, vol. 2, p.337, used by ...

Ear (aural) hematomas occur when blood vessels in the pinna rupture secondary to trauma or excessive head shaking. Blood fills the space between the skin and the cartilage, causing pain and ...