Final answer:
The procedure traditionally performed to treat gastric ulcers and gastric carcinoma and currently used to treat morbid obesity is gastric bypass surgery.
Step-by-step explanation:
The procedure traditionally performed to treat gastric ulcers and gastric carcinoma and currently used to treat morbid obesity is gastric bypass surgery. Gastric bypass surgery involves rerouting a portion of the digestive tract to reduce the intake of food and the absorption of nutrients. In this procedure, the main section of the stomach is closed off from the digestive tract and a small pouch is formed, which is directly attached to the jejunum, bypassing the stomach and duodenum.