tailieunhanh - Kaplan anatomy coloring book - part 5

Tai giữa bao gồm khoang tympanic và cấu trúc trong khoang đó. Nó được kết nối với các vòm họng ống thính giác. Ống này cho phép cân bằng áp lực từ tai giữa và môi trường bên ngoài. Tai ba xương nhỏ âm thanh chuyển từ màng tympanic vào cửa sổ bầu dục của tai trong. | Chapter Six I KAPLAN- . Sense Organs I medical 169 MIDDLE EAR The middle ear consists of the tympanic cavity and structures in that cavity. It is connected to the nasopharynx by the auditory tube. This tube allows for equalization of pressure from the middle ear and the external environment. The three ear ossicles transfer sound from the tympanic membrane to the oval window of the inner ear. Label the three ear ossicles the malleus incus and stapes and color each one a different color. Color the oval window where the stapes connects and use lighter colors for the auditory tube and the tympanic cavity. INNER EAR The inner ear consists of the cochlea the vestibule and the semicircular ducts. In Latin the name cochlea means snail shell and it spirals like a snail. Its function is to translate the mechanical vibrations of sound into nerve impulses. The cochlea has an oval window that attaches to the stapes and a round window that allows for changes in pressure to occur in the inner ear. Label the cochlea and color it in. The vestibule has two parts the utricle and the saccule. These are involved in equilibrium. They determine static equilibrium whereby a person can determine the position of the body at rest. They also register acceleration. Color each of these parts of the vestibule a different color. The semicircular ducts respond to angular acceleration. There are three semicircular ducts the posterior the anterior and the lateral semicircular ducts. Color each of the semicircular ducts a different color. Answer Key a. Malleus b. Incus c. Stapes d. Oval window e. Tympanic membrane f. Tympanic cavity g. Auditory Eustachian tube h. Semicircular ducts i. Anterior duct j. Posterior durt k. Lateral duđ I. Vestibule m. utricle n. Saccule o. Round window p. Cochlea Chapter Six I KAPLAN . . Sense Organs I medical LABYRINTHS OF THE INNER EAR The outer part of the inner ear consists of the bony labyrinth an outer encasement of bone. Inside of this is a fluid called perilymph.