Auditory system - ear

Question 1

How is the auditory system divided?

Answer 1

• peripheral = ear, auditory nerve & neurons of spiral ganglia
• central = neural pathways from cochlear nuclei to auditory cortex

Question 2

What are three main sections of the ear?

Answer 2

• external
• middle
• internal

Question 3

describe the pinna (auricle) - composition/ covering/ shape

Answer 3

highly convoluted which helps determine direction of sound

• composed of elastic cartilage
• covered by thin skin