Jan 24, 2024 · Anatomy and function of the main organs of the digestive system. The digestive tract is the pathway by which food enters the body and solid wastes are expelled. It is a tube-like muscular apparatus that commences at the oral cavity, travels through the thoracic and abdominal cavities and terminates at the anus in the pelvic cavity.

The digestive system can be divided into the digestive tract (oral cavity, esophagus, stomach, small intestine, and large intestine) and associated digestive organs (salivary glands, pancreas, liver, and gallbladder).

The digestive system functions to obtain metabolites necessary for growth and energy needs; however, it must maintain a barrier between the environment and the internal milieu of the body.

Apr 30, 2024 · This is an article covering the histology of the upper digestive tract - oral cavity, esophagus, pharynx and stomach. Learn all about it now at Kenhub!

Describe and be able to recognize the histology of the alimentary canal (gastrointestinal tract). Identify, and describe the function of, the following layers: mucosa, submucosa, muscularis, serosa. One continuing theme of this course is how function follows form …

Each tissue layer plays a vital role in the digestive system ranging in their capacity to form a protective barrier from the highly acidic contents of the stomach to supplying hormones, producing muscular contractions and draining lymph.

Jun 14, 2022 · The stomach is specialized for secretion of digestive enzymes and acid, for mechanical stirring, and for protecting itself against self-digestion. The small intestine is specialized for absorption of nutrients.

It is fairly common to discuss the digestive system in three segments: a) The oral cavity (including teeth and tongue) and the pharynx. b) The digestive tube (or alimentary canal, or gastrointestinal tract) including esophagus, stomach, small intestine, and large intestine.

Identify the accessory digestive organs and briefly state their function; Describe the four fundamental tissue layers of the alimentary canal; Contrast the contributions of the enteric and autonomic nervous systems to digestive system functioning; Explain how the peritoneum anchors the digestive organs

The digestive system includes the alimentary canal, organs within the oral cavity as well as the pancreas, liver and gallbladder. This module covers the principal histological features of the alimentary canal.