Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
The nervous tissue is located throughout the body. It plays its part in the digestive system by telling the brain to secret molecule at a certain point to digest the food. When the food and the contracting of the muscles interact with the nervous it send paracrine signals to the brain to release molecule and enzymes along the digestive tract.
The digestive system has specialized cells that secret digestive enzymes. This includes the inner layer of the organs like the inside of the mouth, and stomach, and the outer layer of the liver and small intestine. By the enzymes exiting at the inner layer of the organ the secreted enzymes would hit and reacted to the substances faster to break it down. An example of a specific cell is the mucosa which is located in the inner layer of the stomach. By being located at the inner layer of the stomach it can reach the food fast and break it down faster and accomplish its function to a faster manor.
The mouth is the beginning of the digestive system. It has powerful muscles the can break down food into small pieces and has teeth to aid this process of breaking down food as well.
By being the first part of the digestive system it needs to break down the food into small piece, which is the mouth function, so the rest of the body can operate at a fast rate with small surface area food particles. By the mouth being structured like this it does this function to the best ability.
To help the break down of food amylase plays apart. The food hits the saliva glands and receive a message to itself and responses to release amylase to break down food. The pancreas and small intestine produce this enzyme.
The digestive system has many organs and organ systems involved. This system lets nutrients, necessary molecules and basic units of structure into the body so that it can convert it into energy so the body can function. This is done by cell communication thought enzymes and hormones. This is also accomplished by the organs working together by secretion and tissue structure around the organs.
The second part of the digestive system tract is the Esophagus. It's a pipe that connects to the stomach that is surrounded by muscle tissue. Its function is to transport food to the stomach. By being surround by smooth muscle tissue it helps the Esophagus transport food all the way down to the stomach.
The way one tract of the digestive system is an evolutionary change by so animals having one opening end for a mouth and anus instead of most animals that have a mouth end and a anus way which is two openings. the animals with two open ends benefit better than animals with one open way for a digestive system by the two open ends digestive tract taking in more nutrient from the food. This shows that the species grow larger and healthy because animals with one end digestive tract have to wait until their done eating and slow the procress of growth down b the slow rate of nutrients taken in. With more complex animals like humans and dogs we grow at a fast rate and deveolp fast by use having a two way end digestive system.
In the digestive system it evolved and changed for certain species. This occurred by the different animals having different diets. For instance a cat might need a longer small intestine to absorb more nutrient out of food longer than humans. Other example is a lion might produce more saliva than a giraffe because lion eat meat and amylase help break down proteins while giraffe diet is base on plants. Another mechanism that evolved in the digestive system is teeth a carnivore developed sharper teeth to ripe and eat meat will a herbivore have flat teeth needed to grid their food.
The smooth muscle tissue surrounds the digestive tract. By being structured like this it function, which is to provide locomotion, aids the travel of food by contracting it along the digestive tract. Connected to the smooth muscle tissue is the connective tissue, by being their it's function, to transport nutrient, operates smoothly by the digestive system absorbing nutrients and the muscle tissue moving the waste out the body.
The epithelial tissue is located everywhere along the digestive tract. By the epithelial tissue being located along the digestive tract it's function, which is the secret molecules, protect the organ and to transport molecules, relations to its structure by the epithelial tissue secreting molecules and hormones to different parts of the body to digest the food taken in.
The next trip is to the stomach which is made up of layers of smooth muscle and shaped like a giant hollow food vacuole. By being made up of this material it can hold food and mix it with hormones and enzymes to break down the food.
A hormone that is present in the stomach is gastrin which is produce by G-cells in the pyloric antron part of the stomach. This is one of the five main hormones in the digestive system. Gastrin is received by pyloric receptors as an example of ligand-protein signaling. Its response is connected to the gastric glands to secrets pepsinogen and pancreas and gall bladder secretions.
The liver and the gallbadder is almost the function and has the same structure. They both aid the digestive system with its secretion of digestive enzymes or bile to digests fats. It's outer layer is made out of connective tissue which transport molecule. By that it can secrete bile to the small intestine to break down fats. They difference between the two is that the liver produce the bile and the gall badder holds the bile is extra is produced.
A hormone that relates to the liver is Secretin one out of the five main hormones from the digestive system. It's produce from S-cells in the duodenum. Secretin is received from the mucosal epithelial cell in the small intestine this is example of a membrane bound ligand which enters the enter without a receptor.Its response is to secret sodium bicarbonate from the pancreas and bile from the liver. This regulates acidity in the small intestine.
Another of the five main hormone that are present in the digestive system is gastrin inhibitory peptide(GIP) which is produce by K-cells in the duodenum. Pyloric glands receive this hormone as a ligand-protein cell communication process and its response is to prevent the secretion of pepsin and acid and stimulate insulin release to the digestive process.
The Digestive System
By Anthony Wallen
The pancreas aids the digestive system with its secretion of digestive enzymes. It's outer layer is made out of connective tissue which transport molecule. Since it right next to the small intestine it can transport molecule in a efficient way. By that it can secrete pancreatic juices externally to the small intestine to break down proteins.
Cholecystokinin is one of the five main hormones that are present in the digestive system. It's produce from I-cell from the duodenum and is received by mucosal ephithelial cell by a ligand membrane bound signaling. The response is to stimulate the release of digestive enzymes in the pancreas and gall bladder.
The last main hormone of the digestive system is motilin which is from M-cells in the duodenum endocrine. It is received by a ligand-protein signaling by a motilin receptor. The response is the increase of the migrating myoelectric complex component of gastrointestinal motility and stimulates the production of pepsin.
The end of the digestive system occurs in the intestines but the most of the process that involves the digestive system is the small intestine. The small intestine is made out of three segments the duodenum, jejunum, and the lieum which all three turns out to be 20ft long. Its structure is long and turns and folds in a certain area and is located near other organs. The larger intestine just moves the waste out of the body and maintains water level it does this by its structure of having muscle tissue to contract the movement of food and epithelial tissue to transport molecule thought its membrane.
The function of the small intestine is to break down the food that wasn't broken down in the stomach it gets its enzymes from the other organs and being located so near the other organ it gets the enzyme quickly and can sufficiently break diown the food.