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Anatomy of the Ear

Anatomy of the Ear

Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...

The Auditory Ossicles

The Auditory Ossicles

The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...

Assessment of apical pulse

Assessment of apical pulse

Assessing the Apical Pulse
Assessing the apical pulse is a critical nursing procedure, particularly indicated for:

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Related Experiment Video

Updated: Apr 10, 2026

Surgical Treatment of an Endolymphatic Sac Tumor

Surgical Treatment of an Endolymphatic Sac Tumor

Published on: May 26, 2023

Auricular Mass in a Child

Emily Tignor¹, Suimin Qiu², Shraddha Mukerji¹

¹Department of Otolaryngology and Head-Neck Surgery, University of Texas Medical Branch, Galveston.

JAMA Otolaryngology-- Head & Neck Surgery

|June 13, 2015

Summary

No abstract available in PubMed .

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