BIO 4426 Lecture Notes - Lecture 1: Stratified Squamous Epithelium, Pseudostratified Columnar Epithelium, Ear Canal
Document Summary
Describe the structure of the outer, middle, and inner ear and know the histologic. Know the components of the bony and membranous labyrinths. Know the structure and functions of the organ of corti. Understand the auditory and vestibular functions of the ear. The ear is a sensory organ that has three anatomic regions: the external ear, the middle ear, and the inner ear. It functions as an auditory system for sound perception and as a vestibular system for maintaining balance. The structure and functional details of the outer and middle regions are relatively simple when compared to those of the inner ear. General structure consists of elastic cartilage covered with skin. Extends internally as the external acoustic meatus and terminates at the tympanic. Auricle and meatus covered with keratinizing stratified squamous epithelium. Sebaceous glands and ceruminous glands produce secretions that mix to form. External ear functions to collect and amplify sound waves.
