sara rincón start. digestion is an important body process where the food we eat, gets converted...

DIGESTIVE SISTEMSara Rincón

START

Digestion is an important body process where the food we eat, gets converted into substances which can be absorbed by the body. Many different organs together form the digestive system, these organs work together to digest the food. You can refer to the below digestive system diagram, for better understanding.

LET’S LEARN TOGETHER ABOUT IT…

MOUTH AND SALIVARY GLANDSThe digestive process begins in the mouth. Food is partly broken down by the process of chewing and by the chemical action of salivary enzymes (these enzymes are produced by the salivary glands and break down starches into smaller molecules).

ESOPHAGUS

After being chewed and swallowed, the food enters the esophagus. The esophagus is a long tube that runs from the mouth to the stomach. It uses rhythmic, wave-like muscle movements (called peristalsis) to force food from the throat into the stomach. This muscle movement gives us the ability to eat or drink even when we're upside-down..

STOMACHThe stomach is a large, sack-like organ that churns the food and bathes it in a very strong acid (gastric acid). Food in the stomach that is partly digested and mixed with stomach acids is called chyme.

LIVERThe liver's main job is to filter the blood coming from the digestive tract, before passing it to the rest of the body. The liver also detoxifies chemicals and metabolizes drugs. As it does so, the liver secretes bile that ends up back in the intestines. The liver also makes proteins important for blood clotting and other functions.

PANCREASThe pancreas is an organ that makes hormones and enzymes to help digestion. The pancreas helps break down carbohydrates, fats and proteins. The pancreas is behind the stomach and is on the left side of the human body.

GALLBLADDERIs a small organ that aids mainly in fat digestion and concentrates bile produced by the liver.

DUODENUMIs the first section of the small intestine, precedes the jejunum and ileum and is the shortest part of the small intestine, where most chemical digestion takes place.

TRANSVERSE COLONIs the longest and most movable part of the colon, The transverse colon as well as the ascending colon are responsible for absorbing water and salts.

ASCENDING COLONIs the part of the colon located between the cecum and the transverse colon. The ascending colon as well as the transverse colon are responsible for absorbing water and salts.

DESCENDING COLONThe descending colon is the part of the colon from the splenic flexure to the beginning of the sigmoid colon and thereby part of the large intestine. The function of the descending colon in the digestive system is to store food that will be emptied into the rectum.

ILEUMIs the final section of the small intestine. The function of the ileum is mainly to absorb vitamin B12 and bile salts and whatever products of digestion that were not absorbed by the jejunum.

CECUMIs a pouch, usually peritoneal, that is considered to be the beginning of the large intestine. It receives fecal material from the ileum, and connects to the ascending colon of the large intestine.

JEJUNUMThe jejunum is the second portion of the small intestine, and it has a lining which is specialized in the absorption of monosaccharides (fully digested carbohydrates) and amino acids (fully digested proteins).

APPENDIXThe appendix sits at the junction of the small intestine and large intestine. It’s a thin tube about four inches long. Normally, the appendix sits in the lower right abdomen.The function of the appendix is unknown. One theory is that the appendix acts as a storehouse for good bacteria, “rebooting” the digestive system after diarrheal illnesses. Other experts believe the appendix is just a useless remnant from our evolutionary past. Surgical removal of the appendix causes no observable health problems.

SIGMOID COLONIs the part of the large intestine that is closest to the rectum and anus. The food travels across the abdomen in the transverse colon, goes back down the other side of the body in the descending colon, and then through the sigmoid colon.

ANUSIs the external opening of the rectum, its closure is controlled by sphincter muscles. Feces are expelled from the body through the anus during the act of defecation, the primary function of the anus

RECTUMThe lower part of the large intestine, where feces are stored before they are excreted.

test your knowledge…1. The lower part of the large intestine, where feces are stored

before they are excreted is called...

RectumAnusPancreas

test your knowledge…1. The lower part of the large intestine, where feces are stored

before they are excreted is called...

RectumAnusPancreas

2. Its main job is to filter the blood coming from the digestive tract, before passing it to the rest of the body.

StomachLiverRectum

2. Its main job is to filter the blood coming from the digestive tract, before passing it to the rest of the body.

StomachLiverRectum

3. It’s where the digestive process begins.

EsophagusMouthIleum

3. It’s where the digestive process begins.

EsophagusMouthIleum

4. It’s the final section of the small intestine. It´s function is mainly to absorb vitamin B12 and bile salts and whatever products of

digestion that were not absorbed by the jejunum.

AppendixSalivary glandsIleum

4. It’s the final section of the small intestine. It´s function is mainly to absorb vitamin B12 and bile salts and whatever products of

digestion that were not absorbed by the jejunum.

AppendixSalivary glandsIleum

5. It’s an organ that makes hormones and enzymes to help digestion, it helps to break down carbohydrates, fats and

proteins. Is located behind the stomach and is on the left side of the human body.

PancreasColonAppendix

5. It’s an organ that makes hormones and enzymes to help digestion, it helps to break down carbohydrates, fats and

proteins. Is located behind the stomach and is on the left side of the human body.

PancreasColonAppendix

6. It’s a long tube that runs from the mouth to the stomach. It uses rhythmic, wave-like muscle movements (called

peristalsis) to force food from the throat into the stomach.

ColonRectumEsophagus

6. It’s a long tube that runs from the mouth to the stomach. It uses rhythmic, wave-like muscle movements (called

peristalsis) to force food from the throat into the stomach.

ColonRectumEsophagus

7. It’s a large, sack-like organ that churns the food and bathes it in a very strong acid (gastric acid).

LiverStomachPancreas

7. It’s a large, sack-like organ that churns the food and bathes it in a very strong acid (gastric acid).

LiverStomachPancreas

8. It’s the external opening of the rectum, its closure is controlled by sphincter muscles. Feces are expelled from the body

through it during the act of defecation.

ColonRectumAnus

8. It’s the external opening of the rectum, its closure is controlled by sphincter muscles. Feces are expelled from the body

through it during the act of defecation.

ColonRectumAnus

9. It’s a small organ that aids mainly in fat digestion and concentrates bile produced by the liver.

EsophagusGallbladerJejunum

9. It’s a small organ that aids mainly in fat digestion and concentrates bile produced by the liver.

EsophagusGallbladerJejunum

10. They produce enzymes in the mouth that break down starches into smaller molecules by a chemical action.

MouthEsophagusSalivary glands

10. They produce enzymes in the mouth that break down starches into smaller molecules by a chemical action.

MouthEsophagusSalivary glands

11. Which organ is this?

The gallbladder

The pancreas

The liver

The esophagus

11. Which organ is this?

The gallbladder

The pancreas

The liver

The esophagus

12. Which organ is this?

The small intestine

The rectum

The large intestine

The ileum

12. Which organ is this?

The small intestine

The rectum

The large intestine

The ileum

13. Which organ is this?

The ileum

The large intestine

The rectum

The esophagus

13. Which organ is this?

The ileum

The large intestine

The rectum

The esophagus

14. Which organ is this?

The salivary glands

The pancreas

The stomach

The appendix

14. Which organ is this?

The salivary glands

The pancreas

The stomach

The appendix

15. Which organ is this?

The appendix

The liver

The esophagus

The gallbladder

15. Which organ is this?

The appendix

The liver

The esophagus

The gallbladder

16. Which organ is this?

The rectum

The stomach

The duodenum

The pancreas

16. Which organ is this?

The rectum

The stomach

The duodenum

The pancreas

17. Which organ is this?

The gallbladder

The liver

The small intestine

The appendix

17. Which organ is this?

The gallbladder

The liver

The small intestine

The appendix

18. Which organ is this?

The pancreas

The large intestine

The esophagus

The gallbladder

18. Which organ is this?

The pancreas

The large intestine

The esophagus

The gallbladder

19. Which organ is this?

The anus

The large intestine

The liver

The small intestine

19. Which organ is this?

The anus

The large intestine

The liver

The small intestine

20. Which organ is this?

The jejunum

The gallbladder

The pancreas

The large intestine

20. Which organ is this?

The jejunum

The gallbladder

The pancreas

The large intestine

21. Which organ is number 1?

The salivary glands

The esophagus

The liver

The gallbladder

The salivary glands

The esophagus

The liver

The gallbladder

21. Which organ is number 1?

22. Which organ is number 2?

The esophagus

The mouth

The small intestine

The rectum

22. Which organ is number 2?

The esophagus

The mouth

The small intestine

The rectum

23. Which organ is number 3?

The gallbladder

The liver

The stomach

The large intestine

23. Which organ is number 3?

The gallbladder

The liver

The stomach

The large intestine

24. Which organ is number 4?

The ileum

The appendix

The pancreas

The cecum

24. Which organ is number 4?

The ileum

The appendix

The pancreas

The cecum

25. Which organ is number 5?

The liver

The duodenum

The pancreas

The stomach

25. Which organ is number 5?

The liver

The duodenum

The pancreas

The stomach

26. Which organ is number 6?

The small intestine

The ileum

The large intestine

The gallbladder

26. Which organ is number 6?

The small intestine

The ileum

The large intestine

The gallbladder

27. Which organ is number 7?

The cecum

The small intestine

The colon

The large intestine

27. Which organ is number 7?

The cecum

The small intestine

The colon

The large intestine

28. Which organ is number 8?

The anus

The appendix

The rectum

The descending colon

28. Which organ is number 8?

The anus

The appendix

The rectum

The descending colon

29. Click on the liver.

29. Click on the liver.

30. Click on the stomach.

30. Click on the stomach.