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The  digestive system  is a collection of organs that can be divided into two parts:  The  alimentary  or  gastrointestina...
List, in order, the eight parts of the digestive tract. 1. Oral cavity
2. Pharynx
3.  Esophagus
4.  Stomach
5.  Small Intestine
6.  Large Intestine
7.  Rectum
8.  Anus
The functions of the  alimentary tract , overall, would be to: <ul><li>Take in food. </li></ul><ul><li>Break down the food...
The three  accessory organs  found in or near the oral cavity are the Tongue Teeth Salivary glands
The three  accessory organs  found in the abdominal cavity are the Liver Gall bladder Pancreas
The functions of the  pharynx , with respect to the digestive system, are to: <ul><li>receive partially digested food from...
<ul><li>Cutting, grinding, lubricating, tasting, manipulating, and moving food are all examples of  ____________  digestio...
Converting large, complicated food molecules into glucose, amino acids, and fatty acids so they can be absorbed is  ______...
What is the general name given to substances which perform chemical digestion in the digestive tract? enzymes
A common tube shared by the respiratory and digestive systems. pharynx
Subdivision of the pharynx located behind the nasal cavity is the: nasopharynx
oropharynx Subdivision of the pharynx located behind the oral cavity is the:
laryngopharynx Subdivision of the pharynx located behind the larynx is the:
These act as “first line” defenders, screening out microorganisms from the air, food, and  liquids that enter the body: to...
Tonsils found in the nasopharynx are called: pharyngeal tonsils
Tonsils located in the laryngopharynx, at the base of the tongue, are called: Lingual tonsils
Tonsils located at the back of the nasal cavity are called the: pharyngeal tonsils
What is the main purpose of mechanical digestion? To increase the surface area of the food for enzymes to act.
A straight, collapsible muscular tube which lies behind (posterior to) the trachea and is about 1 inch in diameter and 10 ...
The functions of the  esophagus  are to: <ul><li>receive partially digested food from the pharynx </li></ul><ul><li>pass t...
Rhythmic contractions of the smooth muscle layers which propel food through the digestive tract are called: Peristalsis or...
The smooth muscle valve located at the end of the esophagus which controls the entrance to the stomach is called: Gastroes...
The uppermost portion of the stomach is called the: Fundus or fundic region
A small region of the stomach very near the cardiac sphincter where the esophagus meets the stomach is the Cardia or cardi...
The middle and largest portion of the stomach is called the  ___________  of the stomach. body
This is the “cone-shaped,” terminal portion of the stomach. Pylorus or pyloric region
The smooth muscle valve that prevents back flow of material from the small intestine to the stomach is called the pyloric ...
The term used to describe the partially digested food once it has been mixed with the digestive secretions of the stomach....
Five functions of the stomach, as listed in class, are: <ul><li>Receives bolus from the esophagus. </li></ul><ul><li>Mixes...
A collapsible, muscular tube that extends from the pyloric sphincter of the stomach to the large intestine. Small intestine
The small intestine is the site where the  majority  of the  _________  digestion of food and  _________  of nutrients tak...
The first 10 – 12 inches of the small intestine is called the  duodenum
The middle section of the small intestine representing about 40% of its length is called the jejunum
The final portion of the small intestine, which represents about 60% of its length is called the  ileum
_______________  project into the  lumen  of the small intestine where they are bathed in the intestinal contents. They fu...
A five foot long collapsible tube that is divided into two parts and is located between the small intestine and the rectum...
The entrance to the large intestine is called the cecum
A vestigial structure located off the cecum of the large intestine is the  vermiform appendix
The major portion of the large intestine which is divided into 4 parts is the  colon
The four sections of the colon, in order, are the Ascending Transverse Descending Sigmoid
Four functions of the large intestine were discussed.  These were: <ul><li>Receives nutrient depleted chyme from the small...
Final storage area for feces. When the rectum fills with feces it is stimulated to contract.  This is called the rectum De...
The last section of the digestive tract is called the  ______________ .  It is made up of three  _________________  muscle...
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Powerpoint review pt. 1

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Transcript of "Powerpoint review pt. 1"

  1. 1. The digestive system is a collection of organs that can be divided into two parts: The alimentary or gastrointestinal tract & the accessory organs
  2. 2. List, in order, the eight parts of the digestive tract. 1. Oral cavity
  3. 3. 2. Pharynx
  4. 4. 3. Esophagus
  5. 5. 4. Stomach
  6. 6. 5. Small Intestine
  7. 7. 6. Large Intestine
  8. 8. 7. Rectum
  9. 9. 8. Anus
  10. 10. The functions of the alimentary tract , overall, would be to: <ul><li>Take in food. </li></ul><ul><li>Break down the food into simpler components. </li></ul><ul><li>Absorb the nutrients. </li></ul><ul><li>Discard the waste. </li></ul>
  11. 11. The three accessory organs found in or near the oral cavity are the Tongue Teeth Salivary glands
  12. 12. The three accessory organs found in the abdominal cavity are the Liver Gall bladder Pancreas
  13. 13. The functions of the pharynx , with respect to the digestive system, are to: <ul><li>receive partially digested food from the oral cavity </li></ul><ul><li>pass the partially digested food on to the esophagus. </li></ul>
  14. 14. <ul><li>Cutting, grinding, lubricating, tasting, manipulating, and moving food are all examples of ____________ digestion. </li></ul>mechanical
  15. 15. Converting large, complicated food molecules into glucose, amino acids, and fatty acids so they can be absorbed is ____________ digestion. chemical
  16. 16. What is the general name given to substances which perform chemical digestion in the digestive tract? enzymes
  17. 17. A common tube shared by the respiratory and digestive systems. pharynx
  18. 18. Subdivision of the pharynx located behind the nasal cavity is the: nasopharynx
  19. 19. oropharynx Subdivision of the pharynx located behind the oral cavity is the:
  20. 20. laryngopharynx Subdivision of the pharynx located behind the larynx is the:
  21. 21. These act as “first line” defenders, screening out microorganisms from the air, food, and liquids that enter the body: tonsils
  22. 22. Tonsils found in the nasopharynx are called: pharyngeal tonsils
  23. 23. Tonsils located in the laryngopharynx, at the base of the tongue, are called: Lingual tonsils
  24. 24. Tonsils located at the back of the nasal cavity are called the: pharyngeal tonsils
  25. 25. What is the main purpose of mechanical digestion? To increase the surface area of the food for enzymes to act.
  26. 26. A straight, collapsible muscular tube which lies behind (posterior to) the trachea and is about 1 inch in diameter and 10 inches long. Esophagus
  27. 27. The functions of the esophagus are to: <ul><li>receive partially digested food from the pharynx </li></ul><ul><li>pass the partially digested food on to the stomach. </li></ul>
  28. 28. Rhythmic contractions of the smooth muscle layers which propel food through the digestive tract are called: Peristalsis or Peristaltic waves
  29. 29. The smooth muscle valve located at the end of the esophagus which controls the entrance to the stomach is called: Gastroesophageal or cardiac sphincter
  30. 30. The uppermost portion of the stomach is called the: Fundus or fundic region
  31. 31. A small region of the stomach very near the cardiac sphincter where the esophagus meets the stomach is the Cardia or cardiac region
  32. 32. The middle and largest portion of the stomach is called the ___________ of the stomach. body
  33. 33. This is the “cone-shaped,” terminal portion of the stomach. Pylorus or pyloric region
  34. 34. The smooth muscle valve that prevents back flow of material from the small intestine to the stomach is called the pyloric sphincter
  35. 35. The term used to describe the partially digested food once it has been mixed with the digestive secretions of the stomach. chyme
  36. 36. Five functions of the stomach, as listed in class, are: <ul><li>Receives bolus from the esophagus. </li></ul><ul><li>Mixes bolus with gastric juices, and mechanically breaks up the food. </li></ul><ul><li>Begins the chemical breakdown of proteins. </li></ul><ul><li>Begins the process of absorption. </li></ul><ul><li>Passes the chyme on to the small intestine. </li></ul>
  37. 37. A collapsible, muscular tube that extends from the pyloric sphincter of the stomach to the large intestine. Small intestine
  38. 38. The small intestine is the site where the majority of the _________ digestion of food and _________ of nutrients takes place. chemical absorption
  39. 39. The first 10 – 12 inches of the small intestine is called the duodenum
  40. 40. The middle section of the small intestine representing about 40% of its length is called the jejunum
  41. 41. The final portion of the small intestine, which represents about 60% of its length is called the ileum
  42. 42. _______________ project into the lumen of the small intestine where they are bathed in the intestinal contents. They function to increase _____________ of the intestinal lining for absorption. Intestinal villi surface area
  43. 43. A five foot long collapsible tube that is divided into two parts and is located between the small intestine and the rectum. Large intestine
  44. 44. The entrance to the large intestine is called the cecum
  45. 45. A vestigial structure located off the cecum of the large intestine is the vermiform appendix
  46. 46. The major portion of the large intestine which is divided into 4 parts is the colon
  47. 47. The four sections of the colon, in order, are the Ascending Transverse Descending Sigmoid
  48. 48. Four functions of the large intestine were discussed. These were: <ul><li>Receives nutrient depleted chyme from the small intestine. </li></ul><ul><li>Reabsorbs the rest of the water and electrolytes from chyme. </li></ul><ul><li>Forms and stores feces until defecation. </li></ul><ul><li>Passes feces on to the rectum. </li></ul>
  49. 49. Final storage area for feces. When the rectum fills with feces it is stimulated to contract. This is called the rectum Defecation reflex
  50. 50. The last section of the digestive tract is called the ______________ . It is made up of three _________________ muscles. anus sphincter
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