Anesthesia and Endotracheal Intubation Before Surgery


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OpenStax Anatomy and Physiology

Patients are usually prepared for general anesthesia before surgery. This includes pre-surgery process of putting the normal homeostatic control on hold. Anesthesiologist takes control of the respiration over the patient’s homeostatic control. The anesthetic drug used relaxes most of the body’s muscle.

– A patient before a major surgery is prepared for what type of process?

The breathing and tongue muscles are some of the affected parts during general anesthesia. When the patient’s body is under general anesthesia, the diaphragm may not move and the tongue relaxes causing partial or full blockade of the airway. To avoid complications with this dilemma, a tube is inserted in the mouth down into the trachea that allows doctors to maintain open airways to the patient’s lungs. This procedure is called endotracheal intubation. After surgery, anesthesiologist puts the patient back to consciousness by gradually changing the mixture of the gases. The tube is then removed when the diaphragm begins to function. From this point, the patient usually wakes up approximately 30 minutes. Sore or scratchy throat is expected few days after surgery.

– What do you call the process when a tube is inserted in the mouth into the trachea that allows to maintain an open airway during surgery?


Betts, J. G., Young, K. A., Wise, J. A., Johnson, E., Poe, B., Kruse, D. H., … DeSaix, P. (n.d.). Anatomy and Physiology. Houston, Texas: OpenStax. Access for free at: