Digestive system MBLEX

Understand peristalsis

A series of wave-like muscle contractions that moves food (Bolus) to different processing stations in the digestive tract

Accessory organs.

Teeth, tongue, salivary glands, pancreas, liver, gallbladder.

Understand the effect of massage/bodywork on the digestive system.

-Indirectly normalizes digestive functions through the normalization of the Autonomic Nervous System -Improves tone of the large and small intestines -Stimulates peristalsis, which can aid in relief of constipation and/or diarrhea -Has a stimulating effect on the digestive organs, which helps improve digestion -Improves mixing actions: By stimulating the small intestines, massage can aid in the absorption of fat

Pharynx

It is commonly referred to as the throat. Its muscular walls function in the process of swallowing and it serves as a pathway for the movement of food from the mouth to the esophagus.

Esophagus

Located in your throat near your trachea (windpipe), the esophagus receives food from your mouth when you swallow. By means of a series of muscular contractions called peristalsis, the esophagus delivers food to your stomach.

What are the major structures of the digestive system? In the Path they travel.

Mouth, Esophagus, Stomach, Liver, Small intestine, Large intestine, Rectum and ends at the Anus

Alimentary canal ( GI tract) Main organs.

Mouth, pharynx, esophagus, esophagus, stomach, small and large intestines.

Overview of Gi tract functions

Mouth- Bite, Chew, Swallow Pharynx & Esophagus- Transport Stomach- Mechanical disruption; Absorption of water and alcohol Small intestine- Chemical and mechanical digestion, absorption Large intestine- Absorb electrolytes & vitamins B & K Rectum and anus- Defecation

What does the digestive system do for us?

Organs that convert food into essential nutrients, That are absorbed into the body and eliminates unused waste material

Stomach

Partial digestion of the food takes place here. The churning action of the stomach muscles physically breaks down the food. The stomach releases acids and enzymes for the chemical breakdown of food. The enzyme pepsin is responsible for protein breakdown.

Identify the basic tissue types found in the digestive system

The digestive system contains all four major tissue types, Epithelial, Connective, Muscle and Nervous. Epithelial tissue lines the entire length the digestive tract. It is made up of many different types of cells, including goblet cells that secrete mucus. There are layers of smooth muscle that line the walls of the tract, and contract to move food through. Nervous tissue is located in the tract, and transports electrical stimulus to the brain. Connective tissue is found between and around the muscles along the digestive tract, and blood transports nutrients throughout the body.

Impact of Autonomic nervous system on digestive system.

The digestive system is under control of the Autonomic Nervous System (ANS). The ANS controls body process that are not under our conscious control. This means that when we eat food, we don't need to think about how our body will digest it. The Autonomic Nervous System automatically does what needs to be done. The digestive system send sensory info to the brain, It switches on the digestive system at meal time and orchestrates the whole subsequent sequence of absorption, storage, or utilization of nutrients according to the bodys changing requirements. It also make sure that waste material is held until the voluntary go ahead is given.

Gallbladder

The gallbladder stores and concentrates bile, and then releases it into the duodenum to help absorb and digest fats.

Liver

The liver has multiple functions, but its main function within the digestive system is to process the nutrients absorbed from the small intestine. Bile from the liver secreted into the small intestine also plays an important role in digesting fat. In addition, the liver is the body's chemical "factory."

Large Intestine (colon)

The major function of the large intestine is to absorb water from the remaining indigestible food matter and transmit the useless waste material from the

Mouth

The mouth is the beginning of the digestive tract; 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 (bolus) your body can absorb and use.

Pancreas

The pancreas secretes digestive enzymes into the duodenum, the first segment of the small intestine. These enzymes break down protein, fats, and carbohydrates. The pancreas also makes insulin, secreting it directly into the bloodstream. Insulin is the chief hormone for metabolizing sugar.

Small intestine

The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs. The main function of the small intestine is absorption of nutrients and minerals from food.