Homework Help

What is the major similarities, and differences in the location, structure, and...

user profile pic

ldygodi4100 | Student, Undergraduate | (Level 1) Honors

Posted February 16, 2013 at 10:30 PM via web

dislike 1 like

What is the major similarities, and differences in the location, structure, and function of the trachea and esophagus in a fetal pig? They look the same to me.

Is the esophagus behind the trachea?

1 Answer | Add Yours

user profile pic

trophyhunter1 | College Teacher | (Level 3) Senior Educator

Posted February 24, 2013 at 4:14 PM (Answer #1)

dislike 1 like

The trachea is anterior to the esophagus. You can feel the trachea when you touch your hand to the front of your own throat. It contains cartilaginous rings to hold open the airway. The trachea connects to the bronchi, which lead to each lung. The trachea is an important part of the respiratory system. Behind the trachea, is the esophagus--a muscular tube. It doesn't contain cartilaginous rings. However, the muscles are needed because peristalsis, a wavelike motion originates in the esophagus. It is this movement that helps push the food down to the stomach. The esophagus is the tube that connects the oral cavity or mouth, to the stomach and is part of the digestive system.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes