Emphasis is placed on the alimentary canal that is highly variable among fish and the types of cells and tissues are conserved. Similar to all other vertebrates the different regions of the alimentary canal consist of the same four basic tissue layers. The internal mucosal layer consists of two...
How do the mucosa layers of the stomach and small intestine differ in function? Describe the function of the digestive system, and differentiate between organs of the alimentary canal and the accessory organs or structure. Explain the strategy for identifying the layers of the alimentary canal withi...
Teethhavethreelayersofsubstances:enamel,dentinandpulpcavity.Aftertheingestion,thefoodundergoesthefirststepofthedigestion:masticationorchewing,Thisprocessismainlymechanical,involvingtearing,cuttingandgrinding.Atthesametime,thefoodisalsobrokendownchemicallybyamylaseinthesalivaproducedbysalivaryglands.Therearethreesalivary...
Movement of digested food along the small intestine is accomplished by rhythmic contractions of the circular and longitudinal smooth muscle layers in theintestinal wall. These contractions are largely controlled by the entericnervous system. Upon opening of theileocecal valveat the distal end of the ...
系统解剖学英文课件:5.Digestive System 消化系统.pptx,Digestive System 消化系统; Constituents: 2 parts Alimentary canal 消化管 Digestive glands 消化腺 ; mouth 口腔 pharynx 咽 esophagus 食管 stomach 胃 small intestines 小肠 duodenum 十二指肠 jejunum 空肠 i
Questions on development of the digestive system: 1 From which germ layers do the following develop: a) the epithelial lining of most of the gut tube b) the smooth muscle of the gut wall c) the visceral and parietal peritoneum d) the lining of the second half of the anal canal? 2 Wha...
The Digestive System And The Function Of The Digestive System The alimentary canal is where the digestive system takes place; it has different components in order for food to be thoroughly processed. The digestive system is composed of an enteric nervous system and has four layers of tissues; th...
drugs to reduce spasm and / or reduce sensitivity to pain More about Irritable Bowel Syndrome (IBS). Ulcer An ulcer is a break in the skin that extends through all its layers, or a break in the membrane lining the alimentary tract that fails to heal and might also be inflamed. See note...
The digestive system is a series of hollow organs that are connected together through a long and twisted tube. The digestive system extends from the mouth to the anus and includes the esophagus, stomach and small and large intestines, as well as accessory organs, including the gallbladder, live...
Human digestive system - Esophagus, Stomach, Intestines: The esophagus, which passes food from the pharynx to the stomach, is about 25 cm (10 inches) in length; the width varies from 1.5 to 2 cm (about 1 inch). The esophagus lies behind the trachea and h