2. List and describe the location of the accessory organs of the digestive system. a. Salivary glands—located in the oral cavity. b. Liver—lies just below the diaphragm on the right side of the body. c. Gallbladder—lies on posterior side of the liver.
Hepatic Function Objectives: 1. List nine functions of the liver (as listed in class). 2. For products that are synthesized or metabolized (broken down), identify which products get secreted back into the blood stream, and which products are released into the bile duct. 3.
The abdominopelvic cavity is home to some of the accessary organs of the digestive system. The first of these in sight is the tiny, ovoid-shaped appendix (Pubmed 2011). The kidneys, gallbladder, and liver are spotted, and the large intestine is seen winding throughout the area. The stomach is visible and positioned superior to the
This gene codes for a protein that form an ion channel, facilitating the movement of salts (sodium and chloride ions) and water across the cell membrane. This is important in creating sweat, digestive juices and mucus [5]. In patients with cystic fibrosis, CFTR is prevented in carrying out these functions due to alteration of salt and water balance in lungs. This eventually causes dehydration in most of the organs and causes thick, sticky mucus to build up in the lungs and digestive tract. Consequently, this creates an environment that favours bacterial growth, and people who suffer from cystic fibrosis are exposed to rapid respiratory tract infections which lead to inflammation and progressive lung
Blood capillaries converge to form venules and then veins. Lymph flows through lymph nodes. f. Describe the lymphatic system role with regard to lipids and lipid-soluble vitamins. The lymphatic vessels transport lipids and lipid-soluble vitamins A, D, E, and K absorbed by the gastrointestinal tract. 2.
The first function of the digestive system is the intake of food; the mouth is responsible for this as this is where food enters the body. Enzymes inside the mouth serve two purposes, one is to kill bacteria and two, begin digestion. Salivary Amylase begins to breakdown starch, carbohydrate in our food. Lingual lipase is an enzyme that stays neutral in the mouth but is active when it reaches the stomach. You should note that enzymes are like tiny biochemical machines that disassemble large macromolecules like proteins, lipids carbohydrates into smaller molecules, the breakdown of these foods continue throughout the digestive system until they are ready to enter the blood stream by absorption.
More saliva is produced in order to begin the procedure of breaking down food so that the body can absorb it. The pharynx receives the food from the mouth and swallowing is done here. Swallowing is partly a reflex and partly voluntary control, but the structure of the mouth is highly involved. The tongue and the soft palate push the food into the pharynx, closing off the trachea, allowing the food to enter the oesophagus. The oesophagus extends from the pharynx and behind the trachea to the stomach.
* The beginning of chemical digestion of protein by enzymes and acid. * The stomach regulates delivery to the small intestine. Duodenum - It is responsible for breaking down food in the small intestine. Small intestine - Digests protein, fats and carbohydrates. * Absorbs most of the nutrients.
the anus ). Digestion begins with the mouth. The teeth are used to break down the food into smaller molecules to be passed down the oesophagus and into the stomach. The stomach is where most of the digestion takes place, this leads to the small intestine; a narrow tube for which most of the absorption of nutrients takes place. The small intestine leads to the large intestine, another tube for which absorption takes place.
State the functions of the small intestine. Describe how it is structured to carry out its functions. Site of chemical digestion and nutrient absorption. Lined with villi (finger-like projections into the lumen) that have microvilli on them. Villi and microvilli increase the surface area of the small intestine to increase the ability to absorb nutrients.