Human Digestive System

p.o. is the medical abbreviation for 'per os' - Latin for 'by mouth' or orally. This indicates medication should be swallowed or taken by the oral route. 'by rectal' would be p.r., 'by subcutaneous' would be s.c. or s.q., and 'topical' would be applied externally to the skin.

The claimed answer is 'amalaze' but the correct spelling is 'amylase'. Amylase is the enzyme that breaks down starch into simpler sugars. Protease digests proteins, not starch. Rennin helps curdle milk in infants. 'Amalyn' is not a recognized digestive enzyme. The answer is conceptually correct but has a typo.

The average digestion time for food is approximately 6-8 hours, but complete digestion including elimination can take 12-24 hours. The statement of 12 hours is a reasonable approximation for the full digestive process.

Enzymes are biological catalysts that speed up chemical reactions in the body. They are most prominently involved in digestion, where they break down complex food molecules into simpler, absorbable nutrients in the digestive tract.

While digestion begins in the stomach through acid and enzyme action, the majority of digestion and nearly all nutrient absorption occurs in the small intestines. The small intestines have a huge surface area with villi and microvilli to maximize absorption.

The appendix is a finger-like projection attached to the cecum, which is the beginning of the large intestine. It is part of the large intestinal tract, not the small intestine, stomach, or liver.

The pancreas secretes insulin, which regulates blood sugar levels. Bile juice is produced by the liver, peptic juice by the stomach, so these are incorrect.

This tests German anatomical vocabulary with 'Darm' being the correct German word for 'intestine'. The distractors are other body parts: Bein (leg), Ellenbogen (elbow), and Kopf (head).

The German word for 'stomach' is 'Magen'. This is a basic anatomical vocabulary term in German, referring to the digestive organ.

The stomach continuously produces mucus to protect its lining from digestive acids. Without this protective mucus layer, the stomach's own digestive juices would begin to digest the stomach tissue itself. This is a well-known fact about human digestive physiology.

The statement is true. Goat's milk has a different protein and fat composition than cow's milk, making it easier and faster to digest. Goat's milk forms smaller, softer curds in the stomach, allowing quicker gastric emptying.

Flatulence is the medical/biological term for passing gas through the rectum. Defecation refers to solid waste elimination, fibrillation is heart muscle spasm, and 'gascapation' is not a real biological term.

The gall bladder stores and concentrates bile produced by the liver, releasing it into the small intestine to aid in fat digestion. The liver produces bile but does not store it, while the appendix and thyroid have unrelated digestive functions.

Swallowed gum does NOT stay in intestines for 6 weeks. Like other indigestible materials (corn hulls, fiber), gum passes through the digestive system in 1-3 days, though digestion of the gum base itself is minimal.