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digestive

QuestionAnswer
Digestion is best defined as: A. Intake of food B. Removal of waste C. Breakdown of food into usable forms D. Transport of nutrients C
The intake of food into the body is called: A. Absorption B. Digestion C. Ingestion D. Defecation C
Wave-like muscular contractions that move food along the digestive tract: A. Mastication B. Peristalsis C. Absorption D. Emulsification B
Which process allows nutrients to enter the bloodstream? A. Digestion B. Defecation C. Absorption D. Ingestion C
Elimination of undigested food occurs through: A. Rectum B. Small intestine C. Stomach D. Anus D
Physical breakdown of food without chemical change: A. Chemical digestion B. Mechanical digestion C. Absorption D. Peristalsis B
Which enzyme begins carbohydrate digestion in the mouth? A. Pepsin B. Trypsin C. Ptyalin D. Lipase C
The main purpose of mechanical digestion is to: A. Kill bacteria B. Increase surface area C. Absorb nutrients D. Produce bile B
Correct order of the digestive tract: A. Mouth → Stomach → Esophagus → Intestine B. Mouth → Pharynx → Esophagus → Stomach C. Mouth → Esophagus → Pharynx → Stomach D. Mouth → Stomach → Small intestine → Esophagus B
Which organ transports food by peristalsis? A. Mouth B. Esophagus C. Liver D. Pancreas B
Which structure prevents backflow of food from the stomach? A. Upper esophageal sphincter B. Pyloric sphincter C. Lower esophageal sphincter D. Anal sphincter C
Semi-liquid mixture of food and gastric juice: A. Bolus B. Chyme C. Feces D. Nutrient B
Which acid is secreted by the stomach? A. Sulfuric acid B. Nitric acid C. Hydrochloric acid D. Carbonic acid C
Rugae are important because they: A. Absorb nutrients B. Kill bacteria C. Allow stomach expansion D. Store bile C
Primary site of digestion and absorption: A. Stomach B. Large intestine C. Small intestine D. Rectum C
Part where digestion is completed: A. Jejunum B. Ileum C. Duodenum D. Colon C
Structures that increase surface area for absorption: A. Rugae B. Haustra C. Villi D. Teniae coli C
Microscopic projections on villi are called: A. Capillaries B. Lumen C. Microvilli D. Haustra C
Main function of the large intestine: A. Digest proteins B. Absorb water C. Produce enzymes D. Secrete bile B
Bacteria responsible for feces odor: A. Salmonella B. Lactobacillus C. E. coli D. Streptococcus C
Pouch-like structures of the colon: A. Villi B. Rugae C. Haustra D. Microvilli C
Storage site of feces: A. Colon B. Rectum C. Anus D. Ileum B
Which sphincter is voluntary? A. Internal anal sphincter B. Pyloric sphincter C. External anal sphincter D. Esophageal sphincter C
Produces bile: A. Gall bladder B. Pancreas C. Liver D. Duodenum C
Stores bile: A. Liver B. Pancreas C. Gall bladder D. Stomach C
Enzymes are transported to the duodenum via: A. Hepatic duct B. Pancreatic duct C. Cystic duct D. Portal vein B
Swallowed food Bolus
Finger-like projections in small intestine Villi
Inactive form of trypsin Trypsinogen
Artery supplying small intestine Superior mesenteric artery
Vein draining blood to liver Superior mesenteric vein
Common passage for bile & pancreatic juice Ampulla of Vater
Emulsifies fats Bile salts
A digestive system with one opening for ingestion and egestion is called: Complete digestive system
Humans have a complete digestive system because: A. Food is digested chemically B. Digestion occurs in stages C. There are separate openings for ingestion and egestion D. Food is absorbed in the intestine C
What structure seals food inside the mouth during chewing? Lips
What taste sensation is mainly detected at the base of the tongue? bitter
What teeth are specialized for tearing and ripping food? canine
It functions the mechanical breakdown of food teeth
The hypopharynx is important because it: A. Produces saliva B. Digests carbohydrates C. Regulates food movement to the esophagus D. Absorbs nutrients C
The glottis is best described as: A. A valve of the stomach B. Opening of the larynx C. Muscle of the esophagus D. Part of the tongue B
Failure of the epiglottis to close results in Choking
Esophageal movement is controlled mainly by: A. Skeletal muscle B. Smooth muscle C. Cardiac muscle D. Voluntary reflexes B
he main function of the upper esophageal sphincter is to: A. Prevent acid reflux B. Control food entry into the esophagus C. Store food D. Absorb nutrient B
Constricting and dilating muscles that regulate food movement are called: Sphincter
The stomach performs mechanical digestion mainly through: Muscular churning
One role of hydrochloric acid is to: A. Neutralize bile B. Activate protein-digesting enzymes C. Absorb fats D. Produce insulin B
Rugae are described as: A. Permanent folds of intestine B. Temporary folds of the stomach lining C. Finger-like projections D. Fat-filled pouches B
Which part receives bile and pancreatic enzymes first? Duodenum
The lumen refers to: A. The intestinal wall B. Blood vessels C. The cavity of the intestine D. Muscle layers C
Microvilli mainly function to: A. Move food B. Secrete enzymes C. Maximize absorption D. Produce mucus C
What structure marks the beginning of the large intestine? cecum
The ileocecal valve is important because it: A. Produces enzymes B. Prevents backflow into the ileum C. Stores feces D. Absorbs water B
Teniae coli are responsible for: A. Absorption B. Forming haustra C. Secreting mucus B
Epiploic appendages are: A. Muscle bands B. Enzyme glands C. Fat-filled pouches D. Blood vessels D. Digesting food C
The hepatic flexure is located near the: A. Spleen B. Liver C. Stomach D. Pancreas B
The splenic flexure is associated with the: A. Liver B. Kidney C. Spleen D. Gall bladder C
The transverse mesocolon functions to: A. Absorb nutrients B. Anchor the transverse colon C. Secrete enzymes D. Store bile B
Distention of the rectum triggers: A. Digestion B. Absorption C. Defecation reflex D. Peristalsis in stomach C
The internal anal sphincter is controlled by: A. Somatic nervous system B. Voluntary muscles C. Autonomic nervous system D. Skeletal muscle C
Trypsinogen is inactive to: A. Digest fats B. Prevent self-digestion of pancreas C. Increase acidity D. Absorb nutrients B
The pancreatic duct empties into the: A. Jejunum B. Ileum C. Duodenum D. Colon C
The ampulla of Vater is significant because it: A. Stores bile B. Produces enzymes C. Combines bile and pancreatic juice D. Absorbs nutrients C
Blood entering the liver from the intestines travels through the: A. Hepatic vein B. Inferior vena cava C. Portal vein D. Superior mesenteric artery C
Detoxification is mainly performed by: A. Acini B. Hepatocytes C. Islets D. Villi B
Digestion is best defined as: A. Intake of food B. Removal of waste C. Breakdown of food into usable forms D. Transport of nutrients C
The intake of food into the body is called: A. Absorption B. Digestion C. Ingestion D. Defecation C
Wave-like muscular contractions that move food along the digestive tract: A. Mastication B. Peristalsis C. Absorption D. Emulsification B
Which process allows nutrients to enter the bloodstream? A. Digestion B. Defecation C. Absorption D. Ingestion C
Elimination of undigested food occurs through: A. Rectum B. Small intestine C. Stomach D. Anus D
Physical breakdown of food without chemical change: A. Chemical digestion B. Mechanical digestion C. Absorption D. Peristalsis B
Which enzyme begins carbohydrate digestion in the mouth? A. Pepsin B. Trypsin C. Ptyalin D. Lipase C
The main purpose of mechanical digestion is to: A. Kill bacteria B. Increase surface area C. Absorb nutrients D. Produce bile B
Correct order of the digestive tract: A. Mouth → Stomach → Esophagus → Intestine B. Mouth → Pharynx → Esophagus → Stomach C. Mouth → Esophagus → Pharynx → Stomach D. Mouth → Stomach → Small intestine → Esophagus B
Which organ transports food by peristalsis? A. Mouth B. Esophagus C. Liver D. Pancreas B
Which structure prevents backflow of food from the stomach? A. Upper esophageal sphincter B. Pyloric sphincter C. Lower esophageal sphincter D. Anal sphincter C
Semi-liquid mixture of food and gastric juice: A. Bolus B. Chyme C. Feces D. Nutrient B
Which acid is secreted by the stomach? A. Sulfuric acid B. Nitric acid C. Hydrochloric acid D. Carbonic acid C
Rugae are important because they: A. Absorb nutrients B. Kill bacteria C. Allow stomach expansion D. Store bile C
Primary site of digestion and absorption: A. Stomach B. Large intestine C. Small intestine D. Rectum C
Part where digestion is completed: A. Jejunum B. Ileum C. Duodenum D. Colon C
Structures that increase surface area for absorption: A. Rugae B. Haustra C. Villi D. Teniae coli C
Microscopic projections on villi are called: A. Capillaries B. Lumen C. Microvilli D. Haustra C
Main function of the large intestine: A. Digest proteins B. Absorb water C. Produce enzymes D. Secrete bile B
Bacteria responsible for feces odor: A. Salmonella B. Lactobacillus C. E. coli D. Streptococcus C
Pouch-like structures of the colon: A. Villi B. Rugae C. Haustra D. Microvilli C
Storage site of feces: A. Colon B. Rectum C. Anus D. Ileum B
Which sphincter is voluntary? A. Internal anal sphincter B. Pyloric sphincter C. External anal sphincter D. Esophageal sphincter C
Produces bile: A. Gall bladder B. Pancreas C. Liver D. Duodenum C
Stores bile: A. Liver B. Pancreas C. Gall bladder D. Stomach C
Enzymes are transported to the duodenum via: A. Hepatic duct B. Pancreatic duct C. Cystic duct D. Portal vein B
Swallowed food Bolus
Finger-like projections in small intestine Villi
Inactive form of trypsin Trypsinogen
Artery supplying small intestine Superior mesenteric artery
Vein draining blood to liver Superior mesenteric vein
Common passage for bile & pancreatic juice Ampulla of Vater
Emulsifies fats Bile salts
A digestive system with one opening for ingestion and egestion is called: Complete digestive system
Humans have a complete digestive system because: A. Food is digested chemically B. Digestion occurs in stages C. There are separate openings for ingestion and egestion D. Food is absorbed in the intestine C
What structure seals food inside the mouth during chewing? Lips
What taste sensation is mainly detected at the base of the tongue? bitter
What teeth are specialized for tearing and ripping food? canine
It functions the mechanical breakdown of food teeth
The hypopharynx is important because it: A. Produces saliva B. Digests carbohydrates C. Regulates food movement to the esophagus D. Absorbs nutrients C
The glottis is best described as: A. A valve of the stomach B. Opening of the larynx C. Muscle of the esophagus D. Part of the tongue B
Failure of the epiglottis to close results in Choking
Esophageal movement is controlled mainly by: A. Skeletal muscle B. Smooth muscle C. Cardiac muscle D. Voluntary reflexes B
he main function of the upper esophageal sphincter is to: A. Prevent acid reflux B. Control food entry into the esophagus C. Store food D. Absorb nutrient B
Constricting and dilating muscles that regulate food movement are called: Sphincter
The stomach performs mechanical digestion mainly through: Muscular churning
One role of hydrochloric acid is to: A. Neutralize bile B. Activate protein-digesting enzymes C. Absorb fats D. Produce insulin B
Rugae are described as: A. Permanent folds of intestine B. Temporary folds of the stomach lining C. Finger-like projections D. Fat-filled pouches B
Which part receives bile and pancreatic enzymes first? Duodenum
The lumen refers to: A. The intestinal wall B. Blood vessels C. The cavity of the intestine D. Muscle layers C
Microvilli mainly function to: A. Move food B. Secrete enzymes C. Maximize absorption D. Produce mucus C
What structure marks the beginning of the large intestine? cecum
The ileocecal valve is important because it: A. Produces enzymes B. Prevents backflow into the ileum C. Stores feces D. Absorbs water B
Teniae coli are responsible for: A. Absorption B. Forming haustra C. Secreting mucus B
Epiploic appendages are: A. Muscle bands B. Enzyme glands C. Fat-filled pouches D. Blood vessels D. Digesting food C
The hepatic flexure is located near the: A. Spleen B. Liver C. Stomach D. Pancreas B
The splenic flexure is associated with the: A. Liver B. Kidney C. Spleen D. Gall bladder C
The transverse mesocolon functions to: A. Absorb nutrients B. Anchor the transverse colon C. Secrete enzymes D. Store bile B
Distention of the rectum triggers: A. Digestion B. Absorption C. Defecation reflex D. Peristalsis in stomach C
The internal anal sphincter is controlled by: A. Somatic nervous system B. Voluntary muscles C. Autonomic nervous system D. Skeletal muscle C
Trypsinogen is inactive to: A. Digest fats B. Prevent self-digestion of pancreas C. Increase acidity D. Absorb nutrients B
The pancreatic duct empties into the: A. Jejunum B. Ileum C. Duodenum D. Colon C
The ampulla of Vater is significant because it: A. Stores bile B. Produces enzymes C. Combines bile and pancreatic juice D. Absorbs nutrients C
Blood entering the liver from the intestines travels through the: A. Hepatic vein B. Inferior vena cava C. Portal vein D. Superior mesenteric artery C
Detoxification is mainly performed by: A. Acini B. Hepatocytes C. Islets D. Villi B
. Conversion of ammonia into urea occurs in the: A. Kidney B. Pancreas C. Liver D. Gall bladder C
Opening of the larynx Glottis
Muscle forming floor of mouth Mylohyoid muscle
Duct connecting gall bladder to CHD Cystic duct
Common bile duct + pancreatic duct Ampulla of Vater
Temporary storage of feces Rectum
Movement slower than small intestine Large intestine
Smooth muscle bands of colon Teniae coli
Valve preventing backflow to small intestine Ileocecal valve
Vertical colon on the right side Ascending colon
Horizontal part of the colon Transverse colon
Vertical colon on the left side Descending colon
S-shaped part before rectum Sigmoid colon
Enzyme-secreting cells of pancreas Acini
Created by: user-2020244
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