Human Digestive System Parts and Functions

Human Digestive System Parts and Functions?

• Human digestive system is a group of organs that work together to convert food into energy and nutrients the body needs to survive. The digestive system is made up of the mouth, esophagus, stomach, small intestine, large intestine, and rectum.
• The mouth is where food is chewed and mixed with saliva. Saliva contains digestive enzymes that break down food into a form the body can absorb. The esophagus is a tube that carries food from the mouth to the stomach. The stomach is a muscular sac that stores food and mixes it with digestive juices. The small intestine is a long, coiled tube that absorbs nutrients from food. The large intestine is a shorter tube that absorbs water and other nutrients from food. The rectum is the last part of the digestive system. It stores feces until they are eliminated from the body.

The Four Mains Functions of The Digestive System:

The four main functions of the digestive system are ingestion, digestion, absorption, and elimination.

• Ingestion is the process of taking food into the body.
• Digestion is the process of breaking down food into smaller pieces so that it can be absorbed into the bloodstream. Absorption is the process of taking the food from the small intestine into the bloodstream.
• Elimination is the process of getting rid of waste from the body.

More About The Topic

• The topic of this essay is the use of animals in scientific research. The first paragraph introduces the topic and provides a brief overview of the arguments for and against the use of animals in research. The second paragraph provides a more detailed overview of the arguments for and against the use of animals in research. The third paragraph provides a more detailed overview of the arguments for and against the use of animals in research, with a focus on the ethical implications of using animals in research. The fourth paragraph provides a more detailed overview of the arguments for and against the use of animals in research, with a focus on the practical implications of using animals in research. The fifth paragraph provides a conclusion to the essay.
• The use of animals in scientific research is a controversial topic that raises a number of ethical and practical concerns. There are strong arguments for and against the use of animals in research, and it is a complex issue that is still being debated today.
• Arguments for the use of animals in research typically focus on the practical benefits of using animals in research. Animals are used in research to study the effects of drugs and to develop new treatments for diseases. They are also used to study the biology and physiology of the human body. Animals are an important tool for scientists, and they have played a significant role in the advancement of human knowledge and medicine.
• Arguments against the use of animals in research typically focus on the ethical concerns of using animals in research. Animals are used in research to study

Mouth

The mouth is the opening at the front of the head that allows us to eat, speak, and breathe. It is lined with mucous membranes that help us to taste and swallow food. The mouth also contains numerous teeth for chewing food.

Esophagus

The esophagus is a muscular tube that connects the throat and the stomach. It moves food and liquid from the throat to the stomach by contracting and pushing the food down. The esophagus also helps to control the amount of acid in the stomach.

Stomach

• ulcers are open sores that occur on the inside lining of the stomach. They are usually caused by bacteria called Helicobacter pylori, but can also be caused by medications such as aspirin and ibuprofen.
• The most common symptoms of a stomach ulcer are stomach pain and a burning sensation in the stomach. Other symptoms may include nausea, vomiting, bloating, and a loss of appetite.
• Treatment for a stomach ulcer usually includes antibiotics to kill the bacteria that is causing the ulcer, and medications to relieve pain and inflammation.

Small Intestine

• The small intestine is a long, coiled tube that connects the stomach to the large intestine. It is about 18-21 feet long in adults. The small intestine is responsible for the final stages of digestion and absorption of food.
• The small intestine is lined with small, finger-like projections called villi. The villi increase the surface area of the intestine, which allows more absorption of nutrients from the food. The villi are covered with tiny, hair-like projections called microvilli, which increase the surface area even more.
• The small intestine is also home to a large number of bacteria. These bacteria help to break down food and absorb nutrients.

Pancreas

The pancreas is a glandular organ in the digestive system that secretes digestive enzymes and hormones. The enzymes help digest food in the small intestine, and the hormones help regulate blood sugar levels.

Liver

The liver is an important organ in the body. It is located in the upper right side of the abdomen. The liver has many functions, including:

-Removing toxins from the blood
-Making bile which helps to digest food
-Storing glucose
-Making proteins that are important for blood clotting

The liver can be injured by a number of things, including:

-Alcohol
-Viruses, such as hepatitis
-Drugs, such as acetaminophen
-Trauma

Gallbladder

• The gallbladder is a small, pear-shaped organ located on the right side of the abdomen. It stores bile, a fluid made by the liver that helps digest fat.
• Gallbladder cancer is a rare cancer. It accounts for less than 1% of all cancers diagnosed in the United States.
• The cause of gallbladder cancer is not known. However, there are some risk factors that may increase your chance of developing the disease. These include:

-Chronic inflammation of the gallbladder (cholecystitis)
-Gallstones
-A family history of gallbladder cancer
-A history of other cancers, such as breast, ovarian, or colorectal cancer
-Age 60 or older

Symptoms of gallbladder cancer may include:

-Pain in the upper right abdomen
-Nausea and vomiting
-Loss of appetite
-Jaundice (a yellowing of the skin and eyes)
-Diarrhea
-Weight loss

If you have any of these symptoms, see your doctor.

Gallbladder cancer is usually treated with surgery. This may include removing the gallbladder, part of the liver, or the entire liver. Chemotherapy and radiation therapy may also be used to treat the cancer.

Colon (large intestine)

• The large intestine, also called the colon, is a long, coiled tube located in the lower abdomen. It absorbs water and other nutrients from food and stores solid wastes until they are eliminated from the body.
• The large intestine is divided into four sections: the cecum, the ascending colon, the transverse colon, and the descending colon. The cecum is the first section, and the ascending, transverse, and descending colon are the subsequent sections.
• The cecum is a small, pouch-like organ that is located at the junction of the small and large intestines. The ascending colon is the first section of the large intestine that extends from the cecum to the liver. The transverse colon is the section of the large intestine that extends across the abdomen. The descending colon is the last section of the large intestine that extends from the transverse colon to the rectum.
• The large intestine is lined with a layer of mucous membrane. The mucous membrane contains tiny, finger-like projections called villi. The villi increase the surface area of the intestine, which allows for greater absorption of nutrients and water from food.
• The large intestine also contains trillions of bacteria known as gut flora. Gut flora is important for digesting food and for maintaining the health of the intestinal mucous membrane.

Rectum

The rectum is a muscular tube that connects the large intestine to the anus. It is about 5 inches long and is widest at the top (near the stomach) and narrowest at the bottom (near the anus). The rectum stores stool until it is ready to be eliminated from the body.

The rectum has several functions:

• to store stool until it is ready to be eliminated from the body

• to regulate the passage of stool from the large intestine to the anus

• to absorb water and nutrients from the stool

• to produce mucus that lubricates the stool and the rectum

For more visit Latus Rectum of Conic Section