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Digestive Track
Digestive Track
18
Anatomy
Undergraduate 4
04/28/2018

Additional Anatomy Flashcards

 


 

Cards

Term
Name the Salivary Glands
Definition
  1. Paratiod
  2. Sublingual
  3. Submandibal
Term
4 Layers of the G.I. Track
Definition
  1. Muscosa
  2. Submuscosa
  3. Muscularis
  4. Serosa
Term
List the digestive track from beginning to end
Definition
  1. Oral cavity
  2. Orophaynx
  3. Espagus
  4. Stomach
  5. Small Intestine
  6. Large Intestine (colon)
  7. Rectum
  8. Anus
Term
Define Sphincter
Definition
Circular muscle that contracts (closed) and relaxes (open)
Term
L.E.S. is called what?
Definition
Heartburn or GERD
Term

 Is deglutition voluntary, involuntary or both?

Where does deglutition occur?

Definition

Deglutition can be both voluntary and involuntary.

In the oral cavity during swallowing it is voluntary.

In the oropharynx (throat) it is involuntary.

Term

Describe the esophagus.

What type of muscle make up the esophagus.

Definition

The esophagus is a conduit that connects the throat and the stomach.

The esophagus is divided up into a upper, middle and lower part.

  • The upper consists of skeletal muscle.
  • The middle consists of both skeletal and smooth muscle.
  • The lower consists of smooth muscle.

 

 

Term
Name the parts of the stomach.
Definition
  • Cardia
  • Fundus
  • Body
  • Pylorus
Term

Name the muscle layer of the stomach.

Are they smooth or skeletal muscles?

Definition
  • the outer longitudinal muscles
  • the middle circular muscles
  • the inner oblique muscles

The muscles are all smooth.

Term
Food traveling through the digestive track is called what and where?
Definition

Food in the oropharynx, esophagus and stomach is called bolus.

Food in the stomach and small intestine is called chyme.

Term
Saliva contains what and what does it do?
Definition
  1. mucus - lubrication
  2. electrolytes
  3. lysoyme - defense against food borne pathagens
  4. IgA - defense against food borne pathagens
  5. Salivary amylase - chemical digestion of starch
  6. Salivary lipase - chemical digestion of lipids
  7. H2O - 98% of salvia

 

Term
What are auxiliary organs and glands of the digestive track?
Definition
  • Teeth - mastication
  • Salivary glands
  • tongue - tasting
  • liver - bile
  • pancreas - Pancreatic amylase - which helps to digest sugars (carbohydrates) and Pancreatic lipase - which helps to digest fat
  • gall bladder -storage for bile
Term
What is bile?
Definition
Bile is an emulsifier.
Term
When is bile released?
Definition
When fats are consumed.
Term

What are hormone causes the gallbladder to secrete bile?

What make the hormone?

Definition

Cholecystokinin

CCK is produced by enterocytes.

Term
What does bile do to a fat globule?
Definition

Bile increases the surface area of a fat globule by breaking into smaller sized fat globules which increases the surface are so lipase can begin chemical digestion.

Term
What is the surface area of the inside of the stomach called? And what is it purpose?
Definition

The inside surface of the stomach is call the rugae and it increases surface area.

Term

What are the functions of hydrochloric acid, HCL?

 

Definition
  1. Activates pepsin
  2. Makes Fe2+ available
  3. Kills microbes
  4. Breaks down plant cell walls
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