Jun 22, 2015 · A diagram that shows the map sheets that surround the current map sheet is called a sheet diagram. The sheet number is found in in both the upper right and lower left areas of the margin, and in the center box of the adjoining sheets diagram, which is 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. The malleus is attached to the tympanic membrane on one side and to the incus on the other side. The incus in turn is connected with the stapes, which is attached to the oval membrane covering the fenestra ovalis (oval window) of the inner ear. Malleus is the largest ossicle, however, stapes is smallest ossicle. Figure 3-2.—Structural shapes. the S-shape is in the design of the inner surfaces of the flange. The W-shape has parallel inner and outer flange surfaces with a constant thickness, while the Ear Notches Ear notching is done on new born baby pigs for the purpose of identification. The pig™s right ear is used for the litter number. All pigs in the same litter should have the same ear notch in the right ear. The pig™s left ear is used to show individual identification for each pig in the litter. 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.