The process that breaking down large molecules into small ones without affecting the chemical composition is known as:
How does the function of the digestive system relate to the characteristics of life?
It provides energy that can be used in metabolic processes.
What disorder is characterized by a weakened intestinal wall resulting in the inner mucous membrane protruding through the wall?
What is segmentation?
Localized contractions and relaxations of smooth muscle that help to mix food and secretions.
What structure is pulled upward during swallowing to close the opening between the nasal cavity and pharynx?
Where do sensory receptors in the stomach and small intestines send the signals necessary for the vomitting reflex?
The digestive system
ingests food, propels food, mechanically and chemically breaks down food, absorbs nutrients, and defecates the remainder
The correct sequence for the layers in the walls of the alimentary canal from innermost to outermost is the
mucosa, submucosa, muscular layer, serosa
Activities of the digestive system generally increase when it is stimulated by
Because of their location, swollen palatine tonsils may interfere with
both breathing and swallowing
The functions of saliva include
moistening, binding and dissolving food particles; beginning chemical digestion of carbohydrates; and cleansing the teeth and mouth
Edith suffers from severe heartburn. She goes to her physician and is diagnosed with a hiatal hernia. This condition affects her
Elliot thought that his peptic ulcers were caused by his nagging parents, and was surprised when the doctor handed him a prescription for medication to treat
a bacterial infection
It is good that Emily does not remember being a newborn, because she was miserable, vomiting frequently. An X-ray revealed hypertrophic pyloric stenosis. The problem in Emily's digestive system, before surgery helped her, was
overgrowth of muscle that blocked the passageway from the stomach to the small intestine
Matthew takes a drug that inhibits the production of HCl in the stomach to ease the symptoms of a gastric ulcer. If he takes it for a long time, digestion of which nutrient would be affected the most?
Secretion of cholecystokinin from the intestinal wall is stimulated by
protein and fat in the small intestine