THORAX ABDOMEN AND PELVIS

MEDICAL

RECTUM AND ANUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the digestive system?
A
The system by which ingested food is acted upon by physical and chemical means to provide the body with absorbable nutrients and to excrete waste products
B
Food thingy
C
Muscle movement that moves food to your stomach to your mouth through the contraction and relaxation of the esophagus muscles
D
Proteins in the body that help break up large food particles into molecules that the cells can use
Explanation: 

Detailed explanation-1: -The digestive system includes the digestive tract and its accessory organs, which process food into molecules that can be absorbed and utilized by the cells of the body. Food is broken down, bit by bit, until the molecules are small enough to be absorbed and the waste products are eliminated.

Detailed explanation-2: -Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.

Detailed explanation-3: -The digestive system includes the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus. It also includes the salivary glands, liver, gallbladder, and pancreas, which make digestive juices and enzymes that help the body digest food and liquids.

Detailed explanation-4: -This physical digestion helps in the easier swallowing of food through the esophagus. It makes food easier for chemical digestion in the stomach. Thus, the oral cavity is the part of the digestive system that physically digests food.

There is 1 question to complete.