DIGESTIVE Flashcards
Insufficient saliva
Condition name
Cause
Difficulty swallowing
Tooth decay
Xerostomia
By radiation of jaw which damages the parotid gland
By sjogren syndrome
What enzyme does saliva contain
Function
Salivary amylase
Breaks down food into smaller sugar
Name tube between the mouth and stomach
Two names of valve which prevents stomach reflux
Upper and lower esophageal
Physiological cause of heart burn? Medical name
Gastroesophagal reflux disease
The acid from stomach goes up to the esophagus burning the lining of the esophagus
Drugs for heartburn and how do they work (3)
Antacids neutralized stomach acid
H2 antagonist inhibit production of HCL in the stomach
Proton pump inhibitor inhibit HCL production may cause hip fractures
What is achlorhydria and what problems can it cause
Reduces HCL in stomach
May decrease protein hydrolysis
May reduce ability to absorb vitamin b-12
Function of gastric juice
Hormone that controls release of gastric juice
Enzyme in gastric juice
Enzyme role and how is it activated
Kills bacteria and denature protein chain to prep it for short peptide chains and amino acid
Gastrin hormone
Pepsinogen: HCL trigger it to partially unfold and hydrolyzes itself activating itself into Pepsin
Pepsin: unfold short peptide chains and amino acids
Pepsin is stable under strongly acid condition
Three portion of the small intestine
What valve control flow of stomach content into duodenum and prevent reflux
Duodenum,jejunum,ileum
Pyloric sphincter
Gastroparesis
Impaired peristaltic contraction
Anatomical feature of small intestine help maximize nutrition absorption
Small intestine micro villi
What part of vascular system are water soluble
What organ do they pass through immediately after absorption
Transferred to vessels which combine into the portal vein
Into liver before circulating them into the hepatic vein
Into what vessel fat is absorbed
Into what duct do these vessels combine
How does this system return to bloodstream
In what form are fat “solubuilized
Absorbed into lacteals vessel
Combined into the thoracic duct
Goes into lymphatic system and enter the subclavian vein near heart
What hormone control release of sodium bicarbonate
Where is it secreted from
Nessecities?
Secretin
Neutralizes HCL juice
Duodenum cells into blood
Function golf bike
Hormone control of bile
Other psychological function promoted by this hormone
Second hormone
Emulsified fat making it easier for lipase in water to break down fat
CCK hormone controls bile by contraction of gall bladder
Describe IBS LONG TERM
Constipation problem pooping
Destruction of villi leads to poorer absorption of nutrients