Layers of Stomach

Q. Apart from the longitudnally oriented muscle layer, the stomach has for effective churning and mixing in the stomach.

1. rugae
2. oblique muscles
3. gastric glands
4. HCl

Q.

In context with the adaptations of the stomach in humans, fill in the blanks by choosing the correct option :

The stomach in humans is lined with an extra layer of (i)__________ for better mixing and churning of food. It even has numerous folds called (ii)________ to increase the area of absorption with many inner mucosal secretory glands called (iii)_________for the production of enzymes and has specially formulated (iv) ________ to protect the walls of the stomach from the action of HCl.

1. i).$\to$ Muscle, ii).$\to$ Rugae, iii).$\to$ Gastric glands, iv). $\to$ Mucus.

2. i).$\to$ Rugae, ii).$\to$ Gastric glands, iii).$\to$ Mucus, iv). $\to$ Muscle

3. i).$\to$ Gastric glands, ii).$\to$ Mucus, iii).$\to$ Muscle, iv).$\to$ Rugae

4. i).$\to$ Mucus, ii).$\to$ Muscle, iii).$\to$ Rugae, iv).$\to$ Gastric glands

Q. List any three symptoms of diabetes
mellitus.