Underneath The Gastric Muscularis

The stomach is an organ that is part of the digestive system. The stomach is located in the upper left part of the abdominal cavity, below the diaphragm and next to the liver (Stomach, 2013). The inner walls of the stomach contain small pores called gastric pits. The gastric pits contain cells that secrete chemicals that aid in the digestion of food (Nguyen, 2015). In this essay, I will discuss the different cell types of the stomach, how they work together to provide the overall function of the stomach, why each organ requires different cell types, why the stomach can’t be comprised of just one cell type, and the advantage of having different types of cells.

Mucosa or mucosal membrane; the type of mucosal membrane varies depend on the location within the GI tract. For example, the mucosa of the oesophagus is composed of tough and stratified epithelium. The mucosa of the rest of the tract is a delicate layer of simple columnar epithelium.

The esophagus receives food from the mouth after swallowing and then delivers it to the stomach. The stomach holds food which it is being mixed with enzymes which continue the process of breaking down the food into a useable form. When the contents of the stomach are processed they are released into the small intestine. In the small intestine food is broken down by enzymes released from the pancreas and bile from the liver, the food is moved through and mixed with digestive secretions. The small intestine is made up of three segments the duodenum, jejunum and the ileum, the jejunum and the ileum are mainly responsible from the absorption of nutrients in to the bloodstream. These contents start out semi-solid and end in a liquid form after passing through the organ. Water, bile, enzymes and mucous change its consistency, one the nutrients have been absorbed it then moves onto the large intestine. The large intestine connects to the rectum and is specialised in processing water so that emptying the bowels is easy.

3. Name the structure that is a double fold of peritoneum and holds the small intestine to the

1) The layer of the GI tract wall that is responsible for motility is the

Once again we have been miniaturized in the submarine to continue the fantastic voyage of the digestive system. We will be touring a 55-year-old male. The host will be having a hamburger, French fries, and a root beer. We will be tracing lunch through the digestion process. Digestion is the process of turning the food that is ate into energy needed to survive and involves creating waste to be eliminated. (Mohan, 2010). The digestive tract is a long twisting tube that starts at the mouth and ends at the anus, called the alimentary canal. The wall of this tube is fashioned of four layers of tissue. The layers are listed from the inside coat to the outside coat: mucosa or mucus membrane, submucosa, muscularis, and serosa. The hollow space

They are made up of smooth muscle. Arterioles control blood flow through capillary beds by contracting or dilating the the size of the lumen, and therefore the tunica media layer contains concentric rings of smooth muscle to do this. This compartment is important in determining your blood pressure as the narrow diameter of these blood vessels resists blood flow, and the back pressure helps to stretch the walls of the arteries during heart contractions. The inner layer has a thin layer of squamous epithelium and the middle layer is made of smooth

They are made up of smooth muscle. Arterioles control blood flow through capillary beds by contracting or dilating the the size of the lumen, and therefore the tunica media layer contains concentric rings of smooth muscle to do this. This compartment is important in determining your blood pressure as the narrow diameter of these blood vessels resists blood flow, and the back pressure helps to stretch the walls of the arteries during heart contractions. The inner layer has a thin layer of squamous epithelium and the middle layer is made of smooth

The man cut himself in the stomach. The stomach, located in the upper left quadrant of the human body, is where the diaphragm so happens to be located. If stabbed in the diaphragm, it can lead to shortness of breath causing a sharp pain in the Thoracic Cavity and around the bottom of the ribs near the stomach, which is the Abdominal Cavity, causing stomach pain. The redness and extreme swelling below the waist is most likely caused by internal bleeding, stomach acids leaking out on to the small and large intestines or both. The problems were caused by the knife injuries and the body parts that are damaged are both the stomach and the

These are known as Mesothelium and Connective tissue. One of which lines the abdominal cavity

Within the tubular gastrointestinal tract, the ENS is formed by various interconnected networks, called plexuses, of enteric neurons, glial cells, and axons (Widmaier et al. 2014). The majority of these nerve cells are found within two different arrangements of ganglia (Fig. 1): the myenteric (Auerbach’s) plexus and the submucosal (Meissner’s) plexus (Furness 2006; Guyton and Hall 2006). The nerve cells’ axons either synapse with additional neurons in the plexus or innervate the smooth muscle of digestive organs (Furness 2006). Neural activity in one plexus can affect activity in the other since some axons in one plexus synapse with neurons in the other (Fig. 1) (Widmaier et al. 2014). Extrinsic nerve fibers from the parasympathetic and sympathetic systems can also synapse with neurons in each of the two plexuses (Fig. 1) (Guyton and Hall 2006). Though the ENS can function without these nerve pathways, the subsystems of the ANS can influence gastrointestinal activity (Guyton and Hall 2006; Widmaier et al. 2014). An example would include either inhibiting or enhancing the GI tract’s motility and secretory activity through the sympathetic and parasympathetic fibers (Widmaier et al. 2014).

Small intestine is the section of digestive system that connects the stomach to the large intestine or colon. The villi, also known as the lining of the small intestine, enables us to digest and absorb nutrients necessary for the optimal functioning of the body.

The stomach is an influential organ within the digestive system that converts the entered bolus into a semi-liquid paste like substance called chyme before it progresses further into the small intestine. This process is attained through the interplay of stomach muscles which churn the food and the mixture of gastric acid, mucus and digestive enzymes. There are numerous substances found in the stomach which contribute to the digestive process such as parietal cells that create hydrochloric acid and intrinsic factor, exocrine cells that produce mucus, chief cells and G cells. These substances aid in the chemical digestion process which represents the chemical alteration of larger molecules into its smaller subunits. Among the various substances,

Multiunit smooth muscle highlights strands that are to some degree disorganized and occur as particular filaments as opposed to sheets. It can be found in the iris of the eyes and in the walls of veins. Multiunit smooth muscle tissue contracts when stimulation by motor nerve impulses. Visceral smooth muscle is made out of sheets of spindle-shaped cells in close contact with each other. This more common variety is found in the walls of hollow, visceral organs, for example, the stomach, digestion tracts, urinary bladder, and uterus. The filaments of visceral smooth muscles are equipped for stimulating one another. In this way, when one fiber is stimulated, the impulse might energize nearby strands that, thusly, might energize others. Visceral