Esophageal Digestion

Q. All of the following statements concerning the esophagus are true EXCEPT:

1. The esophagus is a muscular tube, 25 cm in length that originates at the laryngopharynx and ends at the stomach
2. The esophagus transports food from the oral cavity to the stomach by peristalsis
3. The esophagus produces mucus and digestive enzymes to initiate the breakdown of proteins
4. The lower esophageal sphincter muscle contracts to prevent regurgitation of gastric contents

Q. All of the following statements concerning the esophagus are true EXCEPT:

1. The esophagus is a muscular tube, 25 cm in length that originates at the laryngopharynx and ends at the stomach
2. The esophagus transports food from the oral cavity to the stomach by peristalsis
3. The esophagus produces mucus and digestive enzymes to initiate the breakdown of proteins
4. The lower esophageal sphincter muscle contracts to prevent regurgitation of gastric contents

Q. Choose the correct options:

1. Abdominal pressure is lower than oesophageal pressure. That is why, bolus enters stomach and sphincter allows one way movement of bolus.
2. There is momentary lowering of the pressure in the proximal region of the stomach to hold more volume of bolus.
3. When bolus is inside the stomach, the lower esophagial spincter contracts to prevent the backward movement of the bolus towards the oesophagus.
4. Gastric reflux happens when gastric juice tends to move upwards towards the lower pressure region in oesophagus and is prevented by cardiac sphincter.

Q. Choose the correct options:

1. Abdominal pressure is lower than oesophageal pressure. That is why, bolus enters stomach and sphincter allows one way movement of bolus.
2. There is momentary lowering of the pressure in the proximal region of the stomach to hold more volume of bolus.
3. When bolus is inside the stomach, the lower esophagial spincter contracts to prevent the backward movement of the bolus towards the oesophagus.
4. Gastric reflux happens when gastric juice tends to move upwards towards the lower pressure region in oesophagus and is prevented by cardiac sphincter.

Q. The digestion of food in the oesophagus happens due to

1. Salivary Amylase
2. Pepsin
3. Renin
4. Acid reflux from the stomach

Q. The process that is involved with the movement of food in the oesophagus is called ________.

1. digestion
2. absorption
3. peristalsis
4. defecation