Absorption in Digestive System

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Questions and Answers

How are digested products primarily transported from the digestive canal into the bloodstream?

  • Through blood plasma (correct)
  • Through bile secretion
  • Through lymph plasma
  • Through gastric acid

What is the main route for the transport of digested products into the bloodstream?

  • Nerve cells
  • Blood vessels (correct)
  • Kidneys
  • Bone marrow

Which of the following circulatory systems is NOT involved in transporting digested products from the digestive canal?

  • Respiratory system (correct)
  • Cardiovascular system
  • Endocrine system
  • Lymphatic system

During absorption, where do the digested products pass into before entering the blood plasma?

<p>Interstitial fluid (A)</p> Signup and view all the answers

What is the main destination where the digested products are carried once they enter the blood plasma during absorption?

<p>Tissues (C)</p> Signup and view all the answers

What is the outer layer of the esophagus called?

<p>Adventitia (A)</p> Signup and view all the answers

Which structure secretes mucus to lubricate the esophagus?

<p>Submucosa (B)</p> Signup and view all the answers

In the gastrointestinal tract (GIT), which sphincter connects to the stomach?

<p>Pyloric sphincter (C)</p> Signup and view all the answers

What is the shape of the stomach?

<p>J-shaped (A)</p> Signup and view all the answers

What is the function of the stomach in the digestive process?

<p>Converting bolus into chyme (D)</p> Signup and view all the answers

What is the main function of the Splanchnic Circulation?

<p>Supply the digestive organs with blood (A)</p> Signup and view all the answers

Which arteries serve the small and large intestines?

<p>Mesenteric arteries (C)</p> Signup and view all the answers

What is the main function of the Enteric Nervous System (ENS)?

<p>Control digestive canal motility (D)</p> Signup and view all the answers

Where does the hepatic portal circulation collect blood from?

<p>Digestive viscera (B)</p> Signup and view all the answers

What is the main role of the Submucosal plexus in the digestive canal?

<p>Control digestive canal secretion (C)</p> Signup and view all the answers

Where is the Myenteric plexus located and what does it primarily control?

<p>Between smooth muscle layers, controls digestive canal motility (B)</p> Signup and view all the answers

What happens to the feces when they reach the rectum?

<p>They are stretched and send a message to the spinal cord (D)</p> Signup and view all the answers

What is the result of holding feces and the walls absorbing the water in it?

<p>Constipation (A)</p> Signup and view all the answers

What is the function of the external sphincter during defecation?

<p>To relax and open the anus (B)</p> Signup and view all the answers

What is the sequence of events during the defecation reflex?

<p>Feces reach rectum, spinal cord sends message, external sphincter relaxes (D)</p> Signup and view all the answers

What is the purpose of the hepatic flexure in the large intestine?

<p>To store feces temporarily (A)</p> Signup and view all the answers

What is the primary function of the pylorus?

<p>Separation of the stomach and duodenum via the pyloric valve (C)</p> Signup and view all the answers

Which of the following is not secreted by the stomach?

<p>Bile (A)</p> Signup and view all the answers

What is the role of gastric lipase in the stomach?

<p>Digestion of fats (A)</p> Signup and view all the answers

What is the purpose of the stomach acting as a reservoir for food?

<p>To prepare food for release into the small intestine (B)</p> Signup and view all the answers

What is the function of intrinsic factor in the stomach?

<p>Absorption of vitamin B12 (C)</p> Signup and view all the answers

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