Lips: The lips form the entrance to the oral cavity and are essential for various functions such as speech, eating, and maintaining the integrity of the oral seal.
Teeth: The oral cavity contains teeth, which are used for mastication and breaking down food into smaller particles. There are different types of teeth, including incisors, canines, premolars, and molars, each with specific functions.
Tongue: The tongue is a muscular organ that aids in speech, swallowing, and tasting. It also helps in manipulating food during chewing and swallowing.
Salivary Glands: These glands secrete saliva, which aids in the initial digestion of food and helps in maintaining the pH balance in the mouth.
Functions of the Oral Cavity
The oral cavity performs several important functions, including:
Mastication: The process of chewing food to break it down into smaller pieces, making it easier to swallow and digest.
Tasting: The taste buds in the tongue help in distinguishing different flavors, such as sweet, sour, salty, and bitter.
Swallowing: The oral cavity plays a crucial role in initiating the swallowing reflex, which allows food to pass from the mouth to the esophagus.
Speech: The movement of the tongue and lips within the oral cavity is essential for articulating sounds and forming words during speech.
Maintaining good oral health is important for overall well-being. Proper oral hygiene practices, such as regular brushing, flossing, and dental check-ups, can help prevent issues such as cavities, gum disease, and bad breath.
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.