Digestive System Research Paper

The nervous system in general is quite a complex and sophisticated system which is responsible for regulating and coordinating the body’s activities. The central nervous system consists of the brain and spinal cord, mainly responsible for gathering information and responds to any changes within environment.

The circulatory system brings in the oxygen that then the lungs take in and transport it around the body and then brings the carbon dioxide back for the lungs to push out(exhale) The lungs bring oxygen into the blood stream which goes to feed the heart and the rest of your body. The respiratory system brings in oxygen, which then the circulatory

The blood is pumped by the heart through the afferent bronchial arteries to capillaries in the gills, where the blood is oxygenated). The blood

The digestive system is a group of organs working together to convert food into energy and basic nutrients to feed the whole body. To achieve the goal of providing energy and nutrients to the body, six processes take place in the digestive system.

The left side of the heart, has the left atrium and ventricle that takes in oxygenated blood from the lungs and pumps it out of the aorta.

The digestive and excretory systems help the body with the wonderful task of food. The digestive system is composed of the stomach, mouth, liver, pancreas, and the large and small intestine. It digests food and provides the

Our nervous system is there to help to transfer the things our body feels and what we need. The nervous is broken up into two parts, the central nervous system (CNS), and the peripheral nervous system (PNS). The CNS controls the brain and the spinal cord, the PNS controls the nerves and the ganglia (a small mass of gray matter). Our body uses the spinal cord to send messages to the nerves so that it can control our organs and muscles.

Meanwhile, the salivary glands in your mouth are producing saliva, lubricating the food so it can make it’s way down your esophagus and into your stomach. Saliva contains enzymes, substances that make chemical reactions faster and that breaks down large starch molecules into smaller molecules of sugar. The first step of digestion is complete. Once your food gets to your stomach, the stomach starts to furtherly digest your food. Food in the stomach is digested chemically, with chief and parietal cells. Chief cells produce pepsin, which breaks down protein. Parietal cells produce hydrochloric acid (HCI). These cells and their products help to chemically break down food in the stomach. Once food has been mechanically and chemically digested, the food goes into the small intestine duodenum, which  is the upper section of the small intestine. Attached to the duodenum is the pancreas and gallbladder. The pancreas is an organ that produces a variety of digestive enzymes, and the gallbladder is a storage sac that holds the bile produced in the liver. Bile is a chemical that breaks down fat droplets. The duodenum is also the organ that allows nutrients and water to pass through its walls. After completing its rounds in the duodenum, your digested food makes its way down into the small intestine, and then the large intestine. Villi in the small intestines absorbs nutrients into the bloodstream. The large intestine

The heart is a muscular pump that powers blood all around the human body and this is done by a method of blood vessels such as the arteries, capillaries and veins.

Blood a journey through the body. You might find yourself asking, what does blood have to do with digestion, respiration and circulation? Hopefully, after the presentation all of your questions will be answered.

The cardiovascular system consists of the heart, blood, and valves. The cardiovascular system is able to transport things such as oxygen, nutrients, cell wastes, hormones and other substances vital for the maintenance of homeostasis as well as cell life through blood. The hearts function is to pump the blood in and out of the heart to propel it throughout the rest of the body. Deoxygenated blood enters through the pulmonary circuit through the superior and inferior vena cavae and dumps into the right atrium, then travels through the tricuspid valve into the right ventricle through the pulmonary semilunar valve and out of the pulmonary arteries. When the blood exits the pulmonary arteries into the lungs, gas exchange occurs. Oxygenated blood enters the systemic circuit through the right and left pulmonary veins into the left atrium, through the bicuspid or mitral valve into the left ventricle through the aortic valve and out of the aorta to the rest of the body and back again. The valves of the body carry the blood and help to manage blood pressure throughout the

The digestive system helps the humans break down food and turn it into nutrients. The digestive system is made up of a lot of different organs such as salivary glands, pharynx, mouth, esophagus, stomach, liver, gallbladder, small intestine, large intestine, and pancreas. Salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. The pharynx role in the digestive system is to connect the nose and mouth to the esophagus. The mouth is used for putting in food and also eating the food. The esophagus has only one function and it is to carry food, saliva, and liquid. The stomach receives the food from the esophagus and secretes acid and enzymes that digest food. The liver regulates the composition of blood,

The digestive system is an organ system which consists of a group of organs working together to convert food into energy and nutrients which helps to maintain the body. The organs that make up the digestive system include the pancreas and salivary glands, small intestine, liver, stomach and large intestines. The function of the digestive system is to digest and absorb. Digestion is the breakdown of food into smaller molecules which are them later absorbed in the body. The digestive system is divided into two major parts: the digestive tract and the accessory organs.

Digestion is a multistep process that begins the moment you put a piece of food in your mouth or sip or drink.The mouth is the beginning of the digestive track,and in fact digestion starts here.When taking the first bite of food ,chewing breaks the food into pieces that are more easily digested,while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.

All cells in the body need to have oxygen and nutrients, and they also need their wastes removed. These are the main roles of the circulatory system. The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen. The same liquid can be continuously pumped through the circulatory system over