The middle ear is an air-filled cavity that turns sound waves into vibrations and delivers them to the inner ear. The middle ear is separated from the outer ear by the eardrum, or tympanic (say: tim-PAN-ik) membrane, a thin piece of tissue stretched tight across the ear canal. Sounds hit the eardrum, making it move.
The ear is composed of the outer ear, middle ear, and inner ear. Each section performs distinct functions that help transform vibrations into sound. The outer ear is made of skin, cartilage, and bone. It is also the site of the opening to the ear canal. A structure called the eardrum (tympanic membrane) lies at the end of the ear canal.
What’s in Your Ear? Worksheet 1. Fill the empty boxes in the above diagram with the correct identifying terms. Choose from the following possible terms: outer ear ear lobe wind pipe capillaries pinna middle ear jaw bone inner ear ear canal 2. Match the numbers on the above diagram with the correct terms, below. _____ cochlea within the area covered by the sheet, or for the largest natural feature located within the area at the time the map was drawn. Sheet Number (2) The sheet number is found in bold print in the upper right and lower left areas of the margin, and in the center box of the adjoining sheets diagram found in the lower right margin.
Jan 12, 2020 · The outer ear is the portion of the ear that sits atop the skull, which is made of flesh and cartilage. It is the visible part which serves to protect the eardrum. It also collects and guides sound waves into the middle ear. Compositional parts and their functions . Pinna (ear flap) The ear flap or pinna is the outer portion of the ear. NAME _____ LAB TIME/DATE _____ REVIEW SHEET Human Cardiovascular 33exerciseA Physiology: Blood Pressure and Pulse Determinations Review Sheet 33A 269 Cardiac Cycle 1. Correctly identify valve closings and openings, chamber pressures, and volume lines, and the ECG and heart sound scan lines on the diagram below by matching the diagram labels ... the inner ear. A central hearing loss results from damage or impair-ment to the nerves or nuclei of the central nervous system, either in the pathways to the brain or in the brain itself. A diagram of the ear.6 How Common is Hearing Loss? Each year in the United States, more than 12,000 babies are born with a hearing loss; often, the cause is unknown.4