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The trachea is a part of the respiratory system while the esophagus forms part of the digestive system. Since they belong to different systems, they perform separate functions. The trachea is larger and carries gasses in and out of the lungs. The esophagus is smaller and carries food from the mouth to the stomach.
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoThe esophagus is the tube which swallowed food travels down. The throat is the general term for the part of the body containing both the esophagus and the trachea.
Wiki User
∙ 12y agoYour food goes down your esophagus, and your air goes down your wind pipe (proper name: trachea).
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How does the trachea function in the human body?
The trachea (or windpipe) is just a hollow tube that is anterior to your esophagus that allows air to pass from your mouth to your lungs. It functions by staying open and unobstructed with help from the epiglottis and the "C" shaped cartilage that lines the trachea.
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What is the main structure located in mediastinum?
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Function of trachealis muscle?
The main function of the trachealis muscle is to constrict the trachea, allowing air to be expelled with more force while you are coughing. This muscle is smooth and is located adjacent to the esophagus.
How does the structure and function of the trachea differ from that of the esophagus?
The esophagus has cervical, thoracic, and abdominal parts, extending from the lower end of the pharynx to the cardiac opening of the stomach. When a subject is in the erect position, it is about 25 to 30 cm long. The esophagus is a median structure that lies first behind the trachea and then behind the left atrium. It begins to deviate to the left below the left main bronchus. In the posterior mediastinum it is related to the vertebral column as a string is related to a bow. Hence there is a (retrocardiac) space between it and the vertebrae, which is visible radiographically in oblique and lateral views. The esophagus has constrictions at its commencement, frequently where it is crossed by the left main bronchus, and commonly where it traverses the diaphragm. These are sites where swallowed objects can lodge notwithstanding the fact that the esophagus is distensible and can accommodate almost anything that can be swallowed, e.g., a denture. The impressions of adjacent structures, and their alterations in disease, can be seen radiographically after barium is swallowed. The esophagus transports food and liquid and can be replaced successfully by a non-muscular tube. The muscular layer is striated above (supplied by the vagi) and smooth below (supplied by parasympathetic, or vagal, and sympathetic fibers). The process of swallowing may be watched fluoroscopically. A thin barium meal or liquid is "shot down" to the cardiac orifice, whereas a thick meal or a bolus of food travels more slowly. The esophagus is supplied by arteries in the neck (inferior thyroid arteries), thorax (bronchial arteries, direct branches of the aorta, and phrenic arteries), and abdomen (left gastric artery). Veins of the lower part of the esophagus communicate with the left gastric vein, thereby forming an important portal-systemic anastomosis. Portal obstruction (e.g., in the liver with cirrhosis) causes these channels to enlarge, and their varicosities may produce hemorrhage. Pain fibers from the esophagus accompany the sympathetic system. A vague, deep-seated, esophageal pain may be felt behind the sternum or in the epigastrium, and it resembles that arising from the stomach or heart ("heartburn"). In esophagoscopy, measurements are taken from the upper incisor teeth to indicate the beginning of the esophagus (18 cm), the point at which it is crossed by the left bronchus (28 cm), and its termination (43 cm). The trachea, or windpipe, which has cervical and thoracic parts, extends from the inferior end of the larynx to its point of bifurcation. It is about 9 to 15 cm in length. The trachea descends anterior to the esophagus, enters the superior mediastinum, and divides into right and left main bronchi. The trachea is a median structure but, near its lower end, deviates slightly to the right, resulting in the left main bronchus crossing anterior to the esophagus. Owing to the translucency of the air within it, the trachea is usually visible above the arch of the aorta in radiographs. The trachea has 15 to 20 C-shaped bars of hyaline cartilage that prevent it from collapsing. Longitudinal elastic fibers enable the trachea to stretch and descend with the roots of the lungs during inspiration. When a subject is in the erect position, the trachea divides between the T5 and T7 vertebral levels. The carina is the upward-directed ridge seen internally at the bifurcation and is a landmark during bronchoscopy. The arch of the aorta is at first anterior to the trachea and then on its left side immediately superior to the left main bronchus. Other close relations include the brachiocephalic and left common carotid arteries. The trachea is supplied mainly by the inferior thyroid arteries. Its smooth muscle is supplied by parasympathetic and sympathetic fibers, and pain fibers are carried by the vagi.
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What is the main passageway from the larynx to the lungs?
You have a trachea for this purpose.
What is the difference between nervous system and respiratory system?
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What is a main branch of the trachea?
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What is the main branch from the trachea?
The main branches from the trachea are the bronchi (bronchus is a singular one). These also lead to bronchioles, which lead to aveoli in the lungs.
