The Mouth Pharynx And Esophagus Anatomy And Physiology Ii

The Mouth Pharynx And Esophagus Anatomy And Physiology Ii The pharynx (throat) is involved in both digestion and respiration. it receives food and air from the mouth, and air from the nasal cavities. when food enters the pharynx, involuntary muscle contractions close off the air passageways. figure 6. the pharynx runs from the nostrils to the esophagus and the larynx. Figure 23.3.1 – mouth: the mouth includes the lips, tongue, palate, gums, and teeth. a fleshy bead of tissue called the uvula drops down from the center of the posterior edge of the soft palate. although some have suggested that the uvula is a vestigial organ, it serves an important purpose.

The Mouth Pharynx And Esophagus Anatomy And Physiology Ii The pharynx (throat) is involved in both digestion and respiration. it receives food and air from the mouth, and air from the nasal cavities. when food enters the pharynx, involuntary muscle contractions close off the air passageways. figure 6. the pharynx runs from the nostrils to the esophagus and the larynx. When the food “goes down the wrong way,” it goes into the trachea. when food enters the trachea, the reaction is to cough, which usually forces the food up and out of the trachea, and back into the pharynx. the esophagus the esophagus is a muscular tube that connects the pharynx to the stomach. it is approximately 25.4 cm (10 in) in length. The esophagus is a muscular channel that carries food from the pharynx to the stomach. it starts with the upper esophageal sphincter, formed in part by the cricopharyngeus muscle, and ends with the lower esophageal sphincter, surrounded by the crural diaphragm. when food enters the mouth, it mixes with saliva. the actions of salivary enzymes convert food into a mass called a food bolus. once. The esophagus is a muscular tube that connects the pharynx to the stomach. it is approximately 25.4 cm (10 in) in length, located posterior to the trachea, and remains in a collapsed form when not engaged in swallowing (figure \(\pageindex{8}\)) the esophagus runs a mainly straight route through the mediastinum of the thorax.

The Mouth Pharynx And Esophagus The esophagus is a muscular channel that carries food from the pharynx to the stomach. it starts with the upper esophageal sphincter, formed in part by the cricopharyngeus muscle, and ends with the lower esophageal sphincter, surrounded by the crural diaphragm. when food enters the mouth, it mixes with saliva. the actions of salivary enzymes convert food into a mass called a food bolus. once. The esophagus is a muscular tube that connects the pharynx to the stomach. it is approximately 25.4 cm (10 in) in length, located posterior to the trachea, and remains in a collapsed form when not engaged in swallowing (figure \(\pageindex{8}\)) the esophagus runs a mainly straight route through the mediastinum of the thorax. The main function of the organs of the alimentary canal is to nourish the body. this tube begins at the mouth and terminates at the anus. between those two points, the canal is modified as the oral cavity, pharynx, esophagus, stomach, and small and large intestines to fit the functional needs of the body. When the food “goes down the wrong way,” it goes into the trachea. when food enters the trachea, the reaction is to cough, which usually forces the food up and out of the trachea, and back into the pharynx. the esophagus. the esophagus is a muscular tube that connects the pharynx to the stomach. it is approximately 25.4 cm (10 in) in length.

Normal Anatomy Of The Pharynx Download Scientific Diagram The main function of the organs of the alimentary canal is to nourish the body. this tube begins at the mouth and terminates at the anus. between those two points, the canal is modified as the oral cavity, pharynx, esophagus, stomach, and small and large intestines to fit the functional needs of the body. When the food “goes down the wrong way,” it goes into the trachea. when food enters the trachea, the reaction is to cough, which usually forces the food up and out of the trachea, and back into the pharynx. the esophagus. the esophagus is a muscular tube that connects the pharynx to the stomach. it is approximately 25.4 cm (10 in) in length.