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State wheather the following is true or false :- 1. Food moves through oesophagus by the peristaltic movements in the oesophageal wall.2. Duodenum is a part of large intestine.3. Colon is a part of large intestine.4. Gastric glands secrete HNO3 acid.5. The opening of buccal cavity or oral cavity is called mouth.6. Gullet is the opening of oesophagus and glottis is the opening of larynx and trachea.7. The opening of trachea in pharynx is guarded by a muscular flap, called bicuspid valve8. The pyloric sphincter guards the opening of oesophagus into the stomach.State whether the following statements are true or false. If false, write the correct statement by changing |
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Answer» In the esophagus, two types of peristalsis occur: First, there is a primary peristaltic wave, which occurs when the bolus enters the esophagus during swallowing. The primary peristaltic wave FORCES the bolus down the esophagus and into the stomach in a wave lasting about 8–9 seconds.false,The duodenum is the first part of the small intestine (5-7 m), followed by the jejunum and ileum (in that order); it is also the widest and shortest (25 cm) part of the small intestine. The duodenum is a C-shaped or horseshoe-shaped structure that lies in the upper ABDOMEN near the MIDLINE .truefalseThe glands themselves are in the lamina propria of the mucous membrane and they open into the bases of the gastric pits formed by the EPITHELIUM. The various cells of the glands secrete mucus, pepsinogen, hydrochloric acid, intrinsic factor, gastrin, and bicarbonate.truetruetrue truehope it will hepl |
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