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A & P
GI Unit
| Question | Answer |
|---|---|
| Mastication | Chewing |
| Defecation | Bowel Movement |
| Peristalsis | Involuntary wave like motion |
| Deglutition | Swallowing |
| Feces/Stool | Waste |
| Colon | Large Intestine |
| Bolus | What we swallow (chewed up food) |
| Describe the 3 major functions of the GI system | Digestion, Absorption, Elimination |
| Where does digestion begin? | Mouth |
| What is Ptyalin? | Chemical in saliva |
| Which structure starts the beginning of the GI tract? | Mouth |
| The Salivary Glands | Parotid, Sub-lingual, Sub-mandibular |
| What are papillae? | Taste Buds |
| Where are the hard and soft palate? | Roof of mouth, front and back |
| What structure originates from the soft palet? | Uvula |
| What structure connects the pharynx to the stomach? | Esophagus |
| By what process is food moved through the esophagus? | Parastalsis |
| Name the mucous membrane folds lining the stomach? | Rugae |
| What structure is named the pharynx? | Throat |
| Name the structure that the bolus passes through on its way to the stomach | Cardiac Sphincter |
| What are the 3 divisions of the stomach? | Fundus, Body, Pylorus |
| Where is the pyloric sphincter? | divides pylorus and duodenum. Allows movement from stomach into small intestines. |
| What is the name of the substance that is present in the stomach once food is broken down to the proper consistency? | Chyme |
| What are pepsin & HCL and gastric? | Gastric juices |
| What organ are pepsin, HCL and gastric juices excreted into? | Stomach |
| What are the parts of the small intestines? | Duodenum, jejunum, Ileum |
| What is the main function of the small intestines? | absorption of nutrients |
| What are villi? | finger like projections that line the small intestines |
| once food is adequately digested, it leave the stomach through what structure and enters what structure? | pyloric sphincter - duodenum |
| the food substance leaves the small intestine through what structure ? | Ileo-cecal valve |
| What are the parts of the large intestines? | Cecum, Colon, Sigmoid, Rectum |
| What organ manufactures bile? | Liver |
| What organ stores and concentrates Bile? | Gallbladder |
| What is the function of Bile? | Digest fat |
| Name the pancreatic enzymes, what is their functions? | Amylase - digest carbs Lipase - digest fats Trypsin - digest proteins |
| Through which duct do bile and pancreatic enzyme travel through to be excreted? | Common Bile Duct |
| Into which organ does the common bile duct carry the bile and enzymes? | duodenum |
| What lines the entire GI tract? | mucous membranes |
| Where is the appendix located? | off of the cecum |