MICROANATOMY

Detailed explanation-1: -Meatus-A tube-like channel that extends within the bone, which may provide passage and protection to nerves, vessels, and even sound. Examples include external acoustic meatus and internal auditory meatus. Neck-The segment between the head and the shaft of a bone.

Detailed explanation-2: -The external auditory canal of the outer ear is referred to as the meatus. The ear canal (also known as the external acoustic meatus or external auditory meatus) is a channel that links the middle and outer ears.

Detailed explanation-3: -In anatomy, a meatus is a natural body opening or canal (Latin, 4th declension pl. meatus, or meatuses-often incorrectly meati). Examples include: the external acoustic meatus, the opening of the ear canal.

Detailed explanation-4: -The external acoustic meatus arises from the anteriormost part of the concha and marks the beginning of the external auditory canal. The canal continues in the skull in sigmoid fashion until it meets the tympanic membrane.

Detailed explanation-5: -external auditory canal, also called external auditory meatus, or external acoustic meatus, passageway that leads from the outside of the head to the tympanic membrane, or eardrum membrane, of each ear. The structure of the external auditory canal is the same in all mammals.