Biology High School

The external acoustic meatus is lacated on the _________ temporal _________ bone

Answers

Answer 1

The external acoustic meatus is located on the medial temporal bone. The external acoustic meatus is a canal that leads from the outside of the ear to the tympanic membrane, or eardrum.

The medial two-thirds of the canal is made of bone, which is part of the temporal bone. The lateral third of the canal is made of cartilage. The temporal bone is a large bone in the skull that contains the middle and inner ear, as well as the temporomandibular joint.

The external acoustic meatus is located on the medial side of the temporal bone, just below the zygomatic arch. The canal is about 2.5 centimeters long and 0.7 centimeters in diameter.

The external acoustic meatus is lined with skin, which contains hair and sebaceous glands. The hair helps to trap dust and other particles, while the sebaceous glands secrete oil that helps to keep the canal moist.

The external acoustic meatus is an important part of the hearing mechanism. It helps to amplify sound waves and protect the eardrum from injury.

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