Underneath The Gastric Muscularis

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

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.

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

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.

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).

Smooth muscle Smooth muscle is located in the walls of hollow visceral (internal) organs such as the intestines, stomach, urinary bladder, respiratory passages, and blood vessels. They are classified as visceral, nonstriated, involuntary muscles. The muscle fibers contain a single nucleus, no striations, and are not under conscious control. Naminq of Skeletal Muscles location - the body region or bone with which the muscle is associated.

Serosae consists of two layers that are the parietal and visceral. The parietal layer is attached onto the cavity wall meanwhile the visceral layer is attached onto the organ.

According to Hébert-Losier et al. (2009) there are no consistent evaluation purpose, test parameters, outcome measurements, normative values, or reliability and validity are currently documented for the calf-raise tests. However, the calf-raise test still commonly used on the sports & exercise medicine settings and involves concentric-eccentric actions of the plantar-flexors in unipedal stance, with the total number of calf-raises completed documented as the primary outcome measure (Hébert-Losier, Schneiders, et al., 2009).

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

The electron micrograph image above shows epithelial tissue within the intestines. The role of the intestines is to absorb nutrients from the food and drink we ingest and to absorb water from food. The lining of the small intestines is covered with microvilli. Microvilli are microscopic hair-like structures which produce a larger surface area for the absorption of nutrients. Each microvilli contains a small blood capillary. When nutrients are absorbed into the hair-like structures, they enter its blood capillary. As there are so many microvilli structures on the lining of the small intestines, it creates a brush border. This helps the absorption of nutrients. This is how the nutrients are transferred from food into the bloodstream. Goblet cells

The muscular coat of the stomach helps the breakdown of food to digest it and causes the

The oesophagus - it connects to the stomach via the cardia, the (LES) connects to the cardia and it contracts to hold food inside the stomach.