Digestive System Physiology Exam
Questions and Answers Graded A+
Functions of Digestive Tract - Correct answer-Ingestion
Mechanical Processing
Digestion
Secretion
Absorption
Excretion
Ingestion - Correct answer-Materials enter the oral cavity
Mechanical Processing - Correct answer-Crushing, shearing and mixing of
materials to form wet paste to allow food to move along the digestive tract.
Increases surface area to allow easier breakdown
Digestion - Correct answer-Chemical breakdown of food for absorption. Large
molecules broken down by digestive enzymes disassembling these molecules
,Secretion - Correct answer-Release of water, acids, enzymes, buffers and salt by
epithelium of digestive tract and glandular organs
Absorption - Correct answer-Movement of substrates (broken down nutrients etc.
glucose), electrolytes, vitamins and water across the digestive epithelium and into
the interstitial fluid of the digestive tract.
Excretion - Correct answer-Removal of waste products from the body. Defecation
ejects materials from the digestive tract which removes feces
Mucosa - Correct answer-
Submucosa - Correct answer-
Muscularis externa - Correct answer-C
Serosa - Correct answer-
Digestive epithelium of mucosa - Correct answer-Simple columnar or stratified
squamous
Enteroendocrine cells secrete hormones
Moistened by glandular secretions
Longitudinal folds, circular folds and villi to increase surface area
, Where can you find Stratified squamous - Correct answer-Oral cavity, pharynx,
oesophagus
Mechanical stress
Where can you find simple columnar - Correct answer-Stomach, small intestine,
large intestine
Allows absorption
Presence of goblet cells
Enteroendocrine cells - Correct answer-Secrete hormones
Goblet cells - Correct answer-Secrete mucus
Submucosa description - Correct answer-Dense, irregular connective tissue
Surrounds muscularis mucosae
Large blood vessels and lymphatic vessels
May contain exocrine glands - secretes buffers and enzymes into digestive tract
Muscularis externa description - Correct answer-Smooth muscle - arranged in inner
circular layer and the outer longitudinal layer
Involved in mechanical processing and movement of materials along the digestive
tract
Questions and Answers Graded A+
Functions of Digestive Tract - Correct answer-Ingestion
Mechanical Processing
Digestion
Secretion
Absorption
Excretion
Ingestion - Correct answer-Materials enter the oral cavity
Mechanical Processing - Correct answer-Crushing, shearing and mixing of
materials to form wet paste to allow food to move along the digestive tract.
Increases surface area to allow easier breakdown
Digestion - Correct answer-Chemical breakdown of food for absorption. Large
molecules broken down by digestive enzymes disassembling these molecules
,Secretion - Correct answer-Release of water, acids, enzymes, buffers and salt by
epithelium of digestive tract and glandular organs
Absorption - Correct answer-Movement of substrates (broken down nutrients etc.
glucose), electrolytes, vitamins and water across the digestive epithelium and into
the interstitial fluid of the digestive tract.
Excretion - Correct answer-Removal of waste products from the body. Defecation
ejects materials from the digestive tract which removes feces
Mucosa - Correct answer-
Submucosa - Correct answer-
Muscularis externa - Correct answer-C
Serosa - Correct answer-
Digestive epithelium of mucosa - Correct answer-Simple columnar or stratified
squamous
Enteroendocrine cells secrete hormones
Moistened by glandular secretions
Longitudinal folds, circular folds and villi to increase surface area
, Where can you find Stratified squamous - Correct answer-Oral cavity, pharynx,
oesophagus
Mechanical stress
Where can you find simple columnar - Correct answer-Stomach, small intestine,
large intestine
Allows absorption
Presence of goblet cells
Enteroendocrine cells - Correct answer-Secrete hormones
Goblet cells - Correct answer-Secrete mucus
Submucosa description - Correct answer-Dense, irregular connective tissue
Surrounds muscularis mucosae
Large blood vessels and lymphatic vessels
May contain exocrine glands - secretes buffers and enzymes into digestive tract
Muscularis externa description - Correct answer-Smooth muscle - arranged in inner
circular layer and the outer longitudinal layer
Involved in mechanical processing and movement of materials along the digestive
tract
