An allegory is a symbolism device where the meaning of a greater, often abstract, concept is conveyed with the aid of a more corporeal object or idea being used as an example. Usually a rhetoric device, an allegory suggests a meaning via metaphoric examples.
Digestive System Anatomy Mouth Food begins its journey through the digestive system in the mouth, also known as the oral cavity. Inside the mouth are many accessory organs that aid in the digestion of food—the tongue, teeth, and salivary glands.
Teeth chop food into small pieces, which are moistened by saliva before the tongue and other muscles push the food into the pharynx. The teeth are 32 small, hard organs found along the anterior and lateral edges of the mouth.
Each tooth is made of a bone-like substance called dentin and covered in a layer of enamel—the hardest substance in the body. Teeth are living organs and contain blood vessels and nerves under the dentin in a soft region known as the pulp.
The teeth are designed for cutting and grinding food into smaller pieces. The tongue is located on the inferior portion of the mouth just posterior and medial to the teeth. It is a small organ made up of several pairs of muscles covered in a thin, bumpy, skin-like layer.
The taste buds on the surface of the tongue detect taste molecules in food and connect to nerves in the tongue to send taste information to the brain. The tongue also helps to push food toward the posterior part of the mouth for swallowing.
Surrounding the mouth are 3 sets of salivary glands. The salivary glands are accessory organs that produce a watery secretion known as saliva. Saliva helps to moisten food and begins the digestion of carbohydrates. The body also uses saliva to lubricate food as it passes through the mouth, pharynx, and esophagus.
Pharynx The pharynx, or throat, is a funnel-shaped tube connected to the posterior end of the mouth. The pharynx is responsible for the passing of masses of chewed food from the mouth to the esophagus. The pharynx also plays an important role in the respiratory system, as air from the nasal cavity passes through the pharynx on its way to the larynx and eventually the lungs.
Because the pharynx serves two different functions, it contains a flap of tissue known as the epiglottis that acts as a switch to route food to the esophagus and air to the larynx. It carries swallowed masses of chewed food along its length.
At the inferior end of the esophagus is a muscular ring called the lower esophageal sphincter or cardiac sphincter. The function of this sphincter is to close of the end of the esophagus and trap food in the stomach.
Stomach The stomach is a muscular sac that is located on the left side of the abdominal cavity, just inferior to the diaphragm.
In an average person, the stomach is about the size of their two fists placed next to each other.Model School Award ashio-midori.com Ohio School Counselor Association Grants and Awards ashio-midori.com?pageId. Explain why the role of a consumer is important to an economic system?
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The digestive system uses 3 main processes to move and mix food: ashio-midori.comwing is the process of using smooth and skeletal muscles in the mouth, tongue, and pharynx to push food out of the mouth, through the pharynx, and into the esophagus.
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You can follow any responses to this entry through the RSS feed. Both comments and pings are currently closed. The role of a consumer (or of consumers in general) is important in an economic system because it is consumers who demand goods and services. When they do this, they make it so that other people can have jobs making the goods and services the consumers want.