Digestive system

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What is the function of the small intestine? Absorption of nutrients Mastication Compaction of waste to feces Propulsion of feces to the rectum

Absorption of nutrients

Which of the following is a function of the digestive system? Production of vitamin D from sunlight Development of secondary sexual characteristics Filtration of waste Absorption of nutrients

Absorption of nutrients

Which of the following is a function of hydrochloric acid in the digestive system? Stimulates the secretion of gastrin Activates amylase Kills pathogen by increasing the pH of the stomach Activates pepsinogen

Activates pepsinogen

Which of the following correctly lists the layers of the digestive system from the outer layer to the inner layer? -Adventitia → submucosa → muscularis → mucosa -Adventitia → muscularis → submucosa → mucosa -Mucosa → submucosa → muscularis → adventitia -Mucosa → muscularis → submucosa → adventiti

Adventitia → muscularis → submucosa → mucosa

What is the role of pancreas in the digestive system? Mechanical digestion Chemical digestion Production of bile Production of hydrochloric acid

Chemical digestion

The large intestine is responsible for _______________. Formation of chyme Absorption of vitamins Secretion of hydrochloric acid Compaction of waste into feces

Compaction of waste into feces

What is the role of bile in the digestive system? Formation of chyme Digestion of fat Digestion of protein Digestion of carbohydrate

Digestion of fat

Which of the following is not a function of saliva? Moistens food Cleans the mouth Digests carbohydrate Digests protein

Digests protein

Which part of the GI tract has skeletal muscle in its muscular layer? Small intestine Large intestine Stomach Esophagus

Esophagus

Which of the following nutrients are absorbed into the lymph by lacteals? Vitamin B12 Fats Carbohydrates Amino acids

Fats

Which of the following correctly lists organs that are part of the digestive system? -Stomach, rectum, kidneys, and anal canal -Liver, pancreas, large intestine, and rectum -Stomach, salivary glands, liver, and thyroid gland -Pharynx, esophagus, small intestine, and bladder

Liver, pancreas, large intestine, and rectum

The process of breaking down food into smaller particles in the mouth is called ________. Propulsion Peristalsis Mass movement Mastication

Mastication

Which of the following correctly describes the passage of food from the mouth to the anus? -Mouth → pharynx → esophagus → stomach → duodenum → jejunum → ileum → ascending colon → transverse colon → descending colon → sigmoid colon → rectum → anus -Mouth → pharynx → esophagus → stomach → jejunum → ileum → duodenum → ascending colon → transverse colon → descending colon → sigmoid colon → rectum → anus -mouth → esophagus → pharynx → stomach → duodenum → jejenum → ileum → ascending colon → transverse colon → descending colon → sigmoid colon → rectum → anus -Mouth → pharynx → esophagus → duodenum → stomach → jejunum → ileum → ascending colon → descending colon → transverse colon → sigmoid colon → rectum → anus

Mouth → pharynx → esophagus → stomach → duodenum → jejunum → ileum → ascending colon → transverse colon → descending colon → sigmoid colon → rectum → anus

Which part of the pharynx is not a part of the digestive system? Nasopharynx Laryngopharynx Oropharynx Nasopharynx and laryngopharynx

Nasopharynx

The bolus is formed in which part of the digestive system? Stomach Esophagus Pharynx Oral cavity

Oral cavity

Which of the following correctly describes chyme? -Partially digested food mixed with pancreatic secretions -Partially digested food mixed with an intestinal secretion -Partially digested food mixed with saliva -Partially digested food mixed with gastric juice

Partially digested food mixed with gastric juice

Which of the following intestinal enzymes is correctly paired with its function? Amylase-polypeptide Lipase-nucleic acid Lactose-sucrose Peptidase-polypeptide

Peptidase-polypeptide

Which organ of the digestive system is not covered by the peritoneum? Pharynx Jejunum Stomach Liver

Pharynx

What is the function of the mucus-bicarbonate barrier? Protection of the gastric mucosa Lubrication of chyme Digestion of chyme Converting bolus to chyme

Protection of the gastric mucosa

Chyme is produced in the ____________. Esophagus Stomach Pancreas Duodenum

Stomach


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