This document describes the anatomy and structures of the eye, ear, respiratory system, lungs, and mediastinum. It begins with an overview of the external, middle, and inner ear. It then provides detailed sections on the anatomy of the outer ear, eardrum, middle ear bones, middle ear spaces, Eustachian tube, and inner ear. It also describes the structures of the eye such as the sclera, uvea, retina, humors, chambers and related structures like the eyelids. The respiratory system sections cover the nostrils, larynx, trachea, bronchi and lungs. It details lung lobes and pleurae. It concludes with descriptions of the mediastinum, thorax