Human Digestive System Quiz
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Questions and Answers

Which hormone is NOT involved in stimulating the secretion of bile and pancreatic juice?

  • Cholecystokinin
  • Secretin
  • Gastrin
  • Insulin (correct)
  • What is the primary function of the jejunum in the small intestine?

  • Bile secretion
  • Chemical digestion
  • Nutrient absorption (correct)
  • Acid neutralization
  • What is the first section of the small intestine called?

  • Pylorus
  • Duodenum (correct)
  • Ileum
  • Jejunum
  • Which type of contraction in the small intestine is characterized by back-and-forth movement?

    <p>Segmentation</p> Signup and view all the answers

    What is the role of Peyer's patches in the ileum?

    <p>Immune surveillance</p> Signup and view all the answers

    What is the primary function of the large intestine?

    <p>Absorption of water</p> Signup and view all the answers

    Which part of the large intestine serves as a source for immune cells?

    <p>Appendix</p> Signup and view all the answers

    What role does the ileocecal valve play in the digestion process?

    <p>It regulates the movement of material from the ileum to the large intestine</p> Signup and view all the answers

    Which part of the large intestine forms an S shape before reaching the rectum?

    <p>Sigmoid colon</p> Signup and view all the answers

    What is one of the functions of the intestinal microbial community?

    <p>Producing certain vitamins</p> Signup and view all the answers

    What is the primary function of the enteric nervous system (ENS)?

    <p>Controlling digestive tract motility and blood flow</p> Signup and view all the answers

    Which structure separates the mouth from the nasal cavity?

    <p>Hard palate</p> Signup and view all the answers

    What role do mesenteries play in the digestive system?

    <p>They support and hold digestive organs in place</p> Signup and view all the answers

    Which gland is located just beneath the skin anterior to the ear?

    <p>Parotid gland</p> Signup and view all the answers

    Which of the following components is NOT found in saliva?

    <p>Proteins for muscle repair</p> Signup and view all the answers

    What is the primary function of the stomach?

    <p>Storing food and preparing it for digestion</p> Signup and view all the answers

    Which section of the stomach is where chyme exits to enter the duodenum?

    <p>Pylorus</p> Signup and view all the answers

    What role do gastric glands play in the stomach?

    <p>They produce gastric juice.</p> Signup and view all the answers

    Which phase of gastric secretion is triggered by the sight, smell, or thought of food?

    <p>Cephalic Phase</p> Signup and view all the answers

    How long does it generally take for the stomach to release chyme into the duodenum after a typical meal?

    <p>4 hours</p> Signup and view all the answers

    What is the primary function of the mucosa in the digestive tract?

    <p>To secrete mucus, enzymes, and hormones</p> Signup and view all the answers

    Which of the following is NOT a part of the digestive tract?

    <p>Liver</p> Signup and view all the answers

    What distinguishes the accessory organs from the digestive tract?

    <p>Accessory organs function separately to aid digestion.</p> Signup and view all the answers

    Which layer of the digestive tract is responsible for protecting against disease?

    <p>Mucosa</p> Signup and view all the answers

    Which accessory organ is primarily involved in breaking down food mechanically?

    <p>Teeth</p> Signup and view all the answers

    What is the primary function of saliva in the digestive process?

    <p>To moisten food and form a bolus</p> Signup and view all the answers

    Which type of teeth is primarily responsible for tearing food?

    <p>Canines</p> Signup and view all the answers

    Which part of the pharynx does food travel through after leaving the oral cavity?

    <p>Oropharynx and laryngopharynx</p> Signup and view all the answers

    What prevents stomach acid from flowing back into the esophagus?

    <p>Lower esophageal sphincter</p> Signup and view all the answers

    What role do the glands in the esophagus play?

    <p>Secreting mucus to lubricate the bolus</p> Signup and view all the answers

    What is the primary role of the liver in the digestive process?

    <p>Filtering toxins and recycling old red blood cells</p> Signup and view all the answers

    What triggers the gastric secretion during the cephalic phase?

    <p>The anticipation of food entering the stomach</p> Signup and view all the answers

    What is the function of the gallbladder?

    <p>Storing and concentrating bile produced by the liver</p> Signup and view all the answers

    Which of the following is true regarding the pancreas?

    <p>It has both endocrine and exocrine functions</p> Signup and view all the answers

    During which phase of gastric secretion does the duodenum inhibit gastric secretion?

    <p>Intestinal Phase</p> Signup and view all the answers

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