Gastrointestinal System
A
L
S
Lymphoid Tissues – Locations And Functions of The Tonsils And Mucosa Associated Lymphoid Tissues
The tonsils and mucosa associated lymphoid tissues are not structurally organs; however, they function as secondary lymphoid organs because they are sites of immune responses. Tonsils Tonsils (ton’-sils) are clusters of lymphoid tissue located just deep to the mucous membrane in the pharynx (fayr- inks), or throat,
Alimentary Canal: Characteristics and Layers Composing, it’s Wall and their Functions.
The alimentary canal is a muscular tube about 5 m (20 ft) in length that extends from the esophagus to the anus. Various portions of the alimentary canal are specialized to perform different digestive functions. The hollow space within the alimentary canal through which food passes is
The Location and Function of Pharynx and Esophagus
The pharynx (fayr’-inks) is the passageway that connects the nasal and oral cavities with the larynx and esophagus. It is part of both the respiratory and the digestive systems. Its digestive function is the transport of food from the mouth to the esophagus during swallowing. The swallowing
Structure and Functions of the Stomach and Control of Gastric Secretions
The J-shaped stomach is a pouchlike portion of the alimentary canal. It lies just inferior to the diaphragm in the left upper quadrant of the abdominopelvic cavity. The basic functions of the stomach are temporary storage of food, mixing food with gastric juice, and starting the chemical
Sources and Uses of Carbohydrates, Lipids, Proteins, Vitamins, And Major Minerals
Nutrients are chemicals in foods that provide energy for powering life processes; chemicals aiding or enabling life processes; or materials to construct molecules for the normal development, growth, and maintenance of the body. There are six groups of nutrients: carbohydrates, lipids, proteins, vitamins, minerals, and water. All
