Our auricular muscles are vestigial, remaining part of our bodies while losing their function – moving the pinna, the outer ear – as evolution took its course. “The exact reason these became ...

The ear can detect a time difference as slight as 30 microseconds ... The other chart (right) shows delays from the outer pinna rim which are important in determining elevation in the vertical plane.

Long pieces of white tape should be placed along the outer aspect of the pinna. A rolled piece of gauze or padding should be placed on the head medial to the ear. The ear should then be folded ...

It is located just rostral and medial to the base of the pinna or external ear (Fig. 1). Figure 1: An anesthetized chinchilla in ventral recumbency with tympanic bulla (arrow) visible at the site ...