Which part of the ear connects the pinna to the eardrum?AAuditory nerveBEar canalCIncusDMalleus

Break Down the Problem

1. Identify the parts of the ear mentioned in the question.
2. Determine the function of each part in relation to the ear structure.

Relevant Concepts

• The pinna is the external part of the ear that collects sound.
• The eardrum (tympanic membrane) is the membrane that vibrates in response to sound waves.
• The pathway that connects the outer ear to the eardrum is crucial in the auditory system.

Analysis and Detail

1. Auditory nerve: This carries signals from the inner ear to the brain but does not connect the pinna to the eardrum.
2. Ear canal: Also known as the external auditory canal, this is the tube that leads from the pinna to the eardrum, facilitating sound transmission.
3. Incus: This is one of the ossicles (small bones) in the middle ear that helps transmit sound but does not connect to the pinna.
4. Malleus: Similar to the incus, this is also an ossicle in the middle ear, specifically connected to the eardrum.

Verify and Summarize

• The ear canal is the only structure that directly connects the pinna and the eardrum, serving as a passageway for sound waves.

Final Answer

B. Ear canal