The ear consists of three major regions, the outer ear, the middle ear and the inner ear. The outer ear consists mainly of two parts, the auricle (pinna), including the ear lobe and the external auditory canal. The middle ear begins at the tympanic membrane (ear drum). Inside the tympanic membrane is the tympanic cavity, another part of the middle ear. Here you should label the ear ossicles and the auditory tube (Eustachian tube). The inner ear consists of three major regions, the cochlea, the vestibule, and the semicircular ducts. Use a different color for each major region of the ear.
Answer Key: a. Auricle (pinna), b. External auditory canal, c. Ossicles, d. Inner ear, e. Ear lobe, f. Tympanic membrane, g. Auditory tube, h. External ear, i. Middle ear
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.