Digestive System Notes Outline

 

digestive system outline

Dec 18,  · The Human Digestive System The human digestive system is a complex series of organs and glands that processes food. In order to use the food we eat, our body has to break the food down into smaller molecules that it can process; it also has to exc. Nervous System. Short reflexes (Enteric plexuses (gut-brain) respond to local G.I. tract stimuli. Long reflexes respond to impulses via the autonomic nerves. Location and attachment of digestive organs in the body. Most contained within peritoneum in the abdominopelvic cavity. Visceral peritoneum covers external surface of digestive organs. The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.


Your Digestive System & How it Works | NIDDK


The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liverpancreasand gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.

The hollow organs that make up the GI tract are the mouth, esophagusstomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system. The small intestine has three parts.

Digestive system outline first part is digestive system outline the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendixcecum, colonand rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.

Bacteria in your GI tract, also called gut flora or microbiome, help with digestion. Parts of your nervous and circulatory systems also help, digestive system outline.

Working together, nerves, hormonesbacteria, blood, and the organs of your digestive system digest the foods and liquids you eat or drink each day. Digestion is important because your body needs nutrients from food and drink to work properly and stay healthy.

Proteinsfatscarbohydratesvitaminsdigestive system outline, mineralsand water are nutrients. Your digestive system breaks nutrients into digestive system outline small enough for your body to absorb and use for energy, growth, and cell repair. MyPlate offers digestive system outline and tips to help you meet your individual health needs.

Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, digestive system outline, or both. Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed.

Your large intestine absorbs water, and the waste products of digestion digestive system outline stool. Nerves and hormones help control the digestive process. Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the digestive system outline within each organ. The muscle behind the food contracts and squeezes the food forward, while the muscle in front of the food relaxes to allow the food to move.

Food starts to move through your GI tract when you eat. When you swallow, your tongue pushes the food into your throat. A small flap of tissue, called digestive system outline epiglottis, folds over your windpipe to prevent choking and the food passes into your esophagus.

Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins. Lower esophageal sphincter. When food reaches the end of your esophagus, a ringlike muscle—called the lower esophageal sphincter —relaxes and lets food pass into your stomach. After food enters your stomach, the stomach muscles mix the food and liquid with digestive juices.

The stomach slowly empties its contents, called chymeinto your small intestine. Small intestine. The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion, digestive system outline. The walls of the small intestine absorb water and the digested nutrients digestive system outline your bloodstream.

As digestive system outline continues, the waste products of the digestive process move into the large intestine. Large intestine.

Waste products from the digestive process include undigested parts of food, fluid, and older cells from the lining of your GI tract. The large intestine absorbs water and changes the waste from liquid into stool.

Peristalsis helps move the stool into your rectum. The digestive system outline end of your large intestine, the rectum, stores stool until it pushes stool out of your anus during a bowel movement.

Watch this video to see how food moves through your GI tract. As food moves through your GI tract, your digestive organs break the food into smaller parts using:.

The digestive process starts in your mouth when you chew. Your salivary glands make salivaa digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food. After you swallow, peristalsis pushes the food down your esophagus into your stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.

Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts. Your liver makes a digestive juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from your liver to your gallbladder for storage, or to the small intestine for use.

Your gallbladder stores bile between meals. When you eat, your gallbladder squeezes bile through the bile ducts into your small intestine.

Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food.

Your small intestine also absorbs water with other nutrients, digestive system outline. In your large intestine, more water moves from your GI tract into your bloodstream.

Bacteria in your large intestine help break down remaining nutrients and make vitamin K. Waste products of digestion, including parts of food that are still too large, become stool.

The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to digestive system outline or use. Special cells help absorbed nutrients digestive system outline the intestinal lining into your bloodstream. Your blood carries simple sugars, amino acids, glycerol, and some vitamins and salts to the liver.

Your liver stores, processes, and delivers nutrients to the rest of your body when needed. The lymph systemdigestive system outline, a network of vessels that carry white blood cells and a fluid called lymph throughout your body to fight infection, absorbs fatty acids and vitamins.

Your body uses sugars, amino acids, digestive system outline, fatty acids, and glycerol to build substances you need for energy, growth, and cell repair. Your hormones and nerves work together to help control the digestive process. Signals flow within your GI tract and back and forth from your GI tract to your brain.

Cells lining your stomach and small intestine make and release hormones that control how your digestive system works. These hormones tell your body when to make digestive juices and send signals to your brain that you are hungry or full. Your pancreas also makes hormones that are important to digestion. You have nerves that connect your central nervous system—your brain and spinal cord—to your digestive system and control some digestive functions.

For example, when you see or smell food, your brain sends a signal that causes your salivary glands to "make your mouth water" to prepare you to eat, digestive system outline. When food stretches the walls of your GI tract, the nerves of your ENS release many different substances that speed up or delay the movement of food and the production of digestive juices, digestive system outline.

The nerves digestive system outline signals digestive system outline control the actions of your gut muscles to contract and relax to push food through your intestines. Griffin P. Rodgers explaining the importance of participating in clinical trials. Clinical trials that are currently open and are recruiting can be viewed at www. The NIDDK translates and disseminates research findings through its clearinghouses and education programs to increase knowledge and understanding about health and disease among patients, health professionals, and the public, digestive system outline.

Why is digestion important? How does my digestive system work? How does food move through my GI tract? How does my digestive system break food into small parts my body can use?

What happens to the digested food? How does my body control the digestive process? Clinical Trials What is the digestive system?

The digestive system Bacteria in your GI tract, also called gut flora or microbiome, help with digestion. Proteins break into amino acids Fats break into fatty acids and glycerol Carbohydrates break into simple sugars MyPlate offers ideas and tips to help digestive system outline meet your individual health needs. Your digestive system breaks nutrients into parts that are small enough for your body to absorb.

The digestive process starts when you put food in your mouth. As food moves through your GI tract, your digestive organs break the food into smaller parts using: motion, such as chewing, digestive system outline, squeezing, and mixing digestive juices, digestive system outline, such as stomach acid, bileand enzymes Mouth.

Hormones Cells lining your stomach and small intestine make and release hormones that control how your digestive system works. Nerves You have nerves that connect your central nervous system—your brain and spinal cord—to your digestive system and control some digestive functions.

 

Function of the Digestive System

 

digestive system outline

 

Digestive system is the food processing system of human body. The whole digestive system is in the form of a long, hollow, twisted and turned tube, called the alimentary canal, which starts from the oral cavity and ends at the anus. Nervous System. Short reflexes (Enteric plexuses (gut-brain) respond to local G.I. tract stimuli. Long reflexes respond to impulses via the autonomic nerves. Location and attachment of digestive organs in the body. Most contained within peritoneum in the abdominopelvic cavity. Visceral peritoneum covers external surface of digestive organs. The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.