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    Which of the following organs produces and secretes enzymes that are essential for proper digestion? a. Liver b. Pituitary c. Pancreas d. Gallbladder

    Answer to: Which of the following organs produces and secretes enzymes that are essential for proper digestion? a. Liver b. Pituitary c....

    Endocrine system

    Which of the following organs produces and secretes enzymes that are essential for proper...

    Which of the following organs produces and secretes enzymes that are essential for proper... Question:

    Which of the following organs produces and secretes enzymes that are essential for proper digestion?

    a. Liver b. Pituitary c. Pancreas d. Gallbladder

    Mixed Gland

    There are few glands in the body which has both endocrine and exocrine functions based on the cells present in the gland. The endocrine secretion occurs with the help of specific cells which helps in the release of hormones. The exocrine secretion includes secretion of enzymes in the body and there needs to be presence of ducts. All these structural characters of the gland and their secretions make them mixed gland.

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    The correct answer: The organ which produces and secretes enzymes that are essential for proper digestion is c. Pancreas.

    The pancreas is a specific...

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    Pancreas: Structure & Function

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    Chapter 25 / Lesson 7

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    The pancreas produces enzymes that break down and convert food molecules into nutrients and help regulate blood sugar. Learn about the structure and function of the pancreas, and explore hormones produced by the pancreas such as insulin and glucagon.

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    Digestive System: Function, Organs & Anatomy

    Your digestive system is a sophisticated machine that absorbs the food you eat and transforms it into energy and nutrients. A step-by-step guide on how it works.

    Digestive System

    The food you eat takes an incredible journey through your body, from top (your mouth) to bottom (your anus). Along the way the beneficial parts of your food are absorbed, giving you energy and nutrients. Here’s a step-by-step account of the digestive system’s workings.

    OVERVIEW

    Structure of the Digestive System

    What is the digestive system?

    Your digestive system is made up of the gastrointestinal (GI) tract and your liver, pancreas and gallbladder. The GI tract is a series of hollow organs that are connected to each other from your mouth to your anus. The organs that make up your GI tract, in the order that they are connected, include your mouth, esophagus, stomach, small intestine, large intestine and anus.

    Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

    What does the digestive system do?

    Your digestive system is uniquely constructed to do its job of turning your food into the nutrients and energy you need to survive. And when it’s done with that, it handily packages your solid waste, or stool, for disposal when you have a bowel movement.

    Why is digestion important?

    Digestion is important because your body needs nutrients from the food you eat and the liquids you drink in order to stay healthy and function properly. Nutrients include carbohydrates, proteins, fats, vitamins, minerals and water. Your digestive system breaks down and absorbs nutrients from the food and liquids you consume to use for important things like energy, growth and repairing cells.

    ANATOMY

    What organs make up the digestive system?

    The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver.

    Here’s how these organs work together in your digestive system.

    Mouth

    The mouth is the beginning of the digestive tract. In fact, digestion starts before you even take a bite. Your salivary glands get active as you see and smell that pasta dish or warm bread. After you start eating, you chew your food into pieces that are more easily digested. Your saliva mixes with the food to begin to break it down into a form your body can absorb and use. When you swallow, your tongue passes the food into your throat and into your esophagus.

    Esophagus

    Located in your throat near your trachea (windpipe), the esophagus receives food from your mouth when you swallow. The epiglottis is a small flap that folds over your windpipe as you swallow to prevent you from choking (when food goes into your windpipe). A series of muscular contractions within the esophagus called peristalsis delivers food to your stomach.

    But first a ring-like muscle at the bottom of your esophagus called the lower esophageal sphincter has to relax to let the food in. The sphincter then contracts and prevents the contents of the stomach from flowing back into the esophagus. (When it doesn’t and these contents flow back into the esophagus, you may experience acid reflux or heartburn.)

    Stomach

    The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a usable form. Cells in the lining of your stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process. When the contents of the stomach are processed enough, they’re released into the small intestine.

    Small intestine

    Made up of three segments — the duodenum, jejunum, and ileum — the small intestine is a 22-foot long muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver. Peristalsis also works in this organ, moving food through and mixing it with digestive juices from the pancreas and liver.

    The duodenum is the first segment of the small intestine. It’s largely responsible for the continuous breaking-down process. The jejunum and ileum lower in the intestine are mainly responsible for the absorption of nutrients into the bloodstream.

    Contents of the small intestine start out semi-solid and end in a liquid form after passing through the organ. Water, bile, enzymes and mucus contribute to the change in consistency. Once the nutrients have been absorbed and the leftover-food residue liquid has passed through the small intestine, it then moves on to the large intestine (colon).

    Pancreas

    The pancreas secretes digestive enzymes into the duodenum that break down protein, fats and carbohydrates. The pancreas also makes insulin, passing it directly into the bloodstream. Insulin is the chief hormone in your body for metabolizing sugar.

    Liver

    The liver has many functions, but its main job within the digestive system is to process the nutrients absorbed from the small intestine. Bile from the liver secreted into the small intestine also plays an important role in digesting fat and some vitamins.

    The liver is your body's chemical "factory." It takes the raw materials absorbed by the intestine and makes all the various chemicals your body needs to function.

    The liver also detoxifies potentially harmful chemicals. It breaks down and secretes many drugs that can be toxic to your body.

    Source : my.clevelandclinic.org

    Chapter 4 Quiz Flashcards

    Start studying Chapter 4 Quiz. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

    Chapter 4 Quiz

    47 studiers in the last day

    A molecule forms when two or more atoms are attracted to each other and held together by

    Select one: a. solvents. b. salts. c. bases. d. bonds.

    Click card to see definition 👆

    d. bonds

    Click again to see term 👆

    Which of the following statements is true?

    Select one:

    a. The colon is the major site of nutrient absorption in the human digestive system.

    b. The esophagus is the muscular valve that connects the stomach to the small intestine.

    c. The pyloric sphincter controls the rate at which chyme enters the small intestine.

    d. Lean people have a higher risk of gallstones than overweight people.

    Click card to see definition 👆

    c. The pyloric sphincter controls the rate at which chyme enters the small intestine.

    Click again to see term 👆

    1/10 Created by trista_marie41PLUS

    Terms in this set (10)

    A molecule forms when two or more atoms are attracted to each other and held together by

    Select one: a. solvents. b. salts. c. bases. d. bonds. d. bonds

    Which of the following statements is true?

    Select one:

    a. The colon is the major site of nutrient absorption in the human digestive system.

    b. The esophagus is the muscular valve that connects the stomach to the small intestine.

    c. The pyloric sphincter controls the rate at which chyme enters the small intestine.

    d. Lean people have a higher risk of gallstones than overweight people.

    c. The pyloric sphincter controls the rate at which chyme enters the small intestine.

    An ________ is a compound that speeds up (catalyzes) a chemical reaction.

    Select one: a. electron b. anion c. acid d. enzyme d. enzyme

    Salivary glands secrete amylase, an enzyme that enables a minor amount of ______ to be digested in the mouth.

    Select one: a. starch b. water c. protein d. alcohol a. starch

    Treatment of irritable bowel syndrome usually includes making dietary changes and

    Select one:

    a. moving to a drier climate.

    b. learning ways to manage stress effectively

    c. having the lower third of the colon removed.

    d. reducing physical activity.

    b. learning ways to manage stress effectively

    Chyme is the Select one:

    a. organelle that maintains fluid balance within intestinal cells.

    b. semi-solid liquid formed by the partial digestion of food in the stomach.

    c. material absorbed by lacteals that the liver must detoxify and excrete.

    d. large particle that transports lipids throughout the bloodstream.

    b. semi-solid liquid formed by the partial digestion of food in the stomach.

    Which of the following statements is true?

    Select one:

    a. Segmentation enables chyme to move through the esophagus.

    b. Older adults generally have fewer taste buds than children.

    c. The gallbladder makes bile and stores the compound in the liver.

    d. Foods that taste bitter are generally good energy sources because of their high carbohydrate contents.

    b. Older adults generally have fewer taste buds than children.

    Which of the following physiological changes is a result of anabolic chemical reactions?

    Select one:

    a. The liver's conversion of a large carbohydrate molecule into its component parts.

    b. Enlargement of muscle tissue after 3 weeks of regular exercise.

    c. Breakdown of large food molecules within the lumen of the small intestine.

    d. Loss of body fat during a week of starvation.

    ...

    Which of the following organs produces and secretes enzymes that are essential for proper digestion?

    Select one: a. Liver b. Pancreas c. Gallbladder d. Pituitary b. pancreas

    Which of the following compounds is not secreted by the human stomach?

    Select one:

    a. Hydrochloric acid

    b. Mucus c. Bile d. Gastric juice c. bile

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