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Speech, your means of communication, is the medium for exchanging ideas and expressing both pleasure and pain. Examines the physiology of speech by looking at humans' vocal tracts. Shows how the larynx, vocal chords, wind pipe, tongue, and lips produce the sounds of speech. Also, looks at the ability to understand speech by explaining why your ears and brain can discern the subtle nuances of rapid sounds.
(Source: DCMP)
The ears are a masterpiece of miniature engineering, and our link to the world of sound. But their most important role is that they contain the tiny tubes that control our sense of balance. Presents the functions and parts of the ear in this look at the anatomy of hearing, speech, and balance. Graphics and microphotography vividly illustrate each part of the ear.
What is the future of human presence in space? How might things be different if there had not been a Cold War and a Space Race? What does humanity gain by venturing into the solar system? Three events are key moments in the conquest of space: the R-7 rocket launches the first satellite into space, President Kennedy's speech announces the United States race to the moon, and Neil Armstrong walks on the moon. Part of the "Butterfly Effect" series.
Scientists have recently discovered that the California mantis shrimp can talk. Well, it’s not the same as human speech, but it is audible communication. Researchers studying sounds on the ocean floor had long suspected that burrow-dwelling creatures made noise, and they decided to spy on a group of shrimp by dropping recording devices into their habitat. What they heard was fascinating. The California mantis shrimp not only made noise, but each individual seemed to have its own unique voice. Part of the "News of the Day" series.
Tongue taste areas The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication, and is used in the act of swallowing. It is of importance in the digestive system and is the primary organ of taste in the gustatory system. The tongue's upper surface (dorsum) is covered in taste buds housed in numerous lingual papillae. It is sensitive and kept moist by saliva, and is richly supplied with nerves and blood vessels. The tongue also serves as a natural means of cleaning the teeth. A major function of the tongue is the enabling of speech in humans and vocalization in other animals. The human tongue is divided into two parts, an oral part at the front and a pharyngeal part at the back. The left and right sides are also separated along most of its length by a vertical section of fibrous tissue (the lingual septum) that results in a groove, the median sulcus on the tongue's surface. There are two groups of muscles of the tongue. The four intrinsic muscles alter the shape of the tongue and are not attached to bone. The four paired extrinsic muscles change the position of the tongue and are anchored to bone. Do you have good taste? In this video segment, Dr. Linda Bartoshuk explores the sense of taste in humans - why we have it, and what happens when we lose it. Learn why the sense of smell is also important to our experience of food. Footage from NOVA: "Mystery of the Senses: Taste".
(Source: OpenStax)
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Collection of anatomy resources
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