Anatomy of the Digestive System
This is a muscular organ that mixes food with gastric secretions
What is the stomach?
Any immune cell that "ingests" foreign particles--ex. dendritic cells and neutrophils
What is a phagocyte?
Substance recognized as foreign that triggers an immune response
Antigen
Breakdown of food into smaller molecules
Digestion
Process of breathing air into the lungs
Inspiration
Muscular tube that transports food from the pharynx to the stomach
What is the esophagus?
Phagocytes that activate T-cells
Dendritic Cells
Protein produced by plasma cells that binds antigens
Antibody
Movement of nutrients from digestive tract into blood or lymph
Absorption
Process of breathing air out of the lungs
Expiration
Organ that stores and concentrates bile
What is the gallbladder?
Category of proteins (ex. interleukins & interferons) that enhance immune response
Cytokines
T lymphocyte that destroys infected or abnormal cells
Cytotoxic T-cell
Mechanical process of chewing food
Mastication
Movement of air into and out of the lungs
Pulmonary Ventilation
Organ that produces bile and processes nutrients
Only class of antibody that can cross the placenta
IgG antibodies
Long-lived B cell that "remembers" antigens
Memory B-cell
Release of digestive enzymes, fluids, or hormones
Secretion
Normal amount of air inhaled or exhaled during a single breath
Tidal Volume
Primary site of digestion and nutrient absorption
What is the small intestine?
A protein produced by natural killer cells and T-cells that can make "pores" in target cells, destroying them
Perforin
Process where lymphocytes clone and multiply after recognizing an antigen
Clonal Selection
Wave-like muscular contractions that move food through the tract
Peristalsis
Pressure within the pleural cavity
Intrapleural pressure