GI System: Anatomy & Functions Quiz

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GI tract structure, function, and divisions.

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Ervine Santiago

Canadá

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GI System: Anatomy & Functions Quiz


Froggy Jumps GI System: Anatomy & Functions QuizVersión en línea GI tract structure, function, and divisions. por Ervine Santiago 1 The GI tract is best described as: a A. A series of disconnected organs b D. A purely muscular structure c B. A continuous tube with local variation 2 The lumen of the GI tract is part of which environment? a C. External environment b B. Bloodstream c A. Internal environment 3 What is the primary function of GI sphincters? a B. Absorption of nutrients b C. Control direction of flow c A. Secretion of enzymes 4 Which sphincter is under voluntary control? a D. External anal sphincter, b B. Internal anal sphincter c A. Lower esophageal sphincter 5 The upper esophageal sphincter is composed of: a B. Cardiac muscle b A. Smooth muscle c C. Skeletal muscle 6 Smooth muscle sphincters are regulated by: a B. Autonomic and enteric nervous systems b A. Somatic nervous system c D. Hormones only 7 Approximate length of the GI tract in a living human is: a A. 5 feet b C. 15 feet c B. 10 feet 8 GI tract length doubles after death due to: a A. Fluid accumulation b B. Muscle contraction c C. Relaxation of longitudinal muscles 9 Upper GI tract includes which structure? a C. Stomach, mouth, esophagus b A. Ileum, duodenum c B. Colon 10 Main function of the upper GI tract is: a D. Bacterial fermentation b B. Initial digestion and intake c A. Waste storage 11 Most digestion and absorption occur in the: a D. Small intestine b A. Stomach c B. Large intestine 12 Which structure is part of the middle GI tract? a A. Cecum b D. Mouth c B. Duodenum 13 Lower GI tract is primarily responsible for: a C. Water absorption and storage b A. Protein digestion c B. Lipid emulsification 14 Which structure is part of the lower GI tract? a A. Jejunum b C. Colon, cecum, rectum c B. Ileum 15 Not a primary GI function: a A. Digestion b C. Filtration of blood c B. Absorption 16 Absorption is defined as: a A. Breakdown of food b B. Movement of food through tract c C. Transfer from external to internal environment 17 Which process involves mixing and relocation of food? a B. Motility b A. Secretion c D. Digestion 18 Which function releases substances to aid digestion? a B. Absorption b A. Motility c C. Secretion 19 Defecation refers to: a D. Food breakdown b B. Waste elimination c A. Nutrient absorption 20 Which salivary gland is under the tongue? a A. Parotid b C. Sublingual gland c B. Submandibular 21 Which salivary gland is near the jaw hinge? a D. Lingual b A. Sublingual c B. Parotid gland 22 Daily saliva production is approximately: a B. 1000 mL b A. 500 mL c C. 1500 mL 23 Primary function of saliva is to: a C. Store food b A. Absorb nutrients c B. Lubricate and moisten food 24 Which enzyme begins starch digestion? a D. Trypsin b B. Amylase c A. Lipase 25 Lingual lipase primarily digests: a C. Lipids b A. Proteins c B. Carbohydrates 26 Which salivary components provide antibacterial action? a B. Lipase b C. Lysozyme and lactoferrin c A. Amylase 27 Xerostomia refers to: a B. Dry mouth b A. Excess saliva c D. Tooth decay 28 Common cause of xerostomia: a B. Antibiotics b A. Increased parasympathetic activity c C. Autoimmune attack of salivary glands 29 Xerostomia-Which drugs can contribute to dry mouth? a A. Antibiotics b D. Vitamins c B. Antidepressants and antihypertensives 30 Xerostomia-Damage to which system reduces saliva production? a D. Endocrine b A. Sympathetic only c B. Parasympathetic-atrophy 31 The esophagus primarily functions as a: a C. Conduit for passage of food (pharynx to stomach) b B. Digestive gland c A. Storage organ 32 Food moves through the esophagus by: a B. Filtration b A. Diffusion c C. Peristalsis 33 Upper third of the esophagus contains: a A. Smooth muscle b C. Cardiac muscle c B. Skeletal muscle 34 Lower two-thirds of the esophagus contains: a B. Smooth muscle b D. Elastic tissue c A. Skeletal muscle 35 Esophageal lining consists of: a C. Columnar b A. Simple cuboidal c B. Stratified squamous (non-keratinized) epithelium 36 Esophageal epithelium is replaced approximately every: a A. 1–2 days b B. 3–4 days c C. 5–7 days 37 Mucus in the esophagus serves to: a A. Digest food b C. Protect and lubricate c B. Absorb nutrients 38 Upper esophageal sphincter prevents: a D. Nutrient absorption b A. Acid reflux c C. Air entering the GI tract 39 Lower esophageal sphincter prevents: a C. Reflux of gastric contents b B. Swallowing c A. Air entry 40 The lower esophageal sphincter is normally: a D. Inactive b A. Relaxed c B. Tonically contracted

GI System: Anatomy & Functions Quiz

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GI System: Anatomy & Functions QuizVersión en línea

por Ervine Santiago

The GI tract is best described as:

The lumen of the GI tract is part of which environment?

What is the primary function of GI sphincters?

Which sphincter is under voluntary control?

The upper esophageal sphincter is composed of:

Smooth muscle sphincters are regulated by:

Approximate length of the GI tract in a living human is:

GI tract length doubles after death due to:

Upper GI tract includes which structure?

Main function of the upper GI tract is:

Most digestion and absorption occur in the:

Which structure is part of the middle GI tract?

Lower GI tract is primarily responsible for:

Which structure is part of the lower GI tract?

Not a primary GI function:

Absorption is defined as:

Which process involves mixing and relocation of food?

Which function releases substances to aid digestion?

Defecation refers to:

Which salivary gland is under the tongue?

Which salivary gland is near the jaw hinge?

Daily saliva production is approximately:

Primary function of saliva is to:

Which enzyme begins starch digestion?

Lingual lipase primarily digests:

Which salivary components provide antibacterial action?

Xerostomia refers to:

Common cause of xerostomia:

Xerostomia-Which drugs can contribute to dry mouth?

Xerostomia-Damage to which system reduces saliva production?

The esophagus primarily functions as a:

Food moves through the esophagus by:

Upper third of the esophagus contains:

Lower two-thirds of the esophagus contains:

Esophageal lining consists of:

Esophageal epithelium is replaced approximately every:

Mucus in the esophagus serves to:

Upper esophageal sphincter prevents:

Lower esophageal sphincter prevents:

The lower esophageal sphincter is normally: