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Digestive System
Organs of
| Question | Answer |
|---|---|
| What are the primary functions of the Digestive System? | digestion and Absorption of Dietary Foodstuffs |
| What are the organs of the Gastrointestinal Tract? | 1. Mouth; 2. Oropharynx; 3. Esophagus; 4. Stomach; 5. SMALL Intestine |
| What are the parts of the Mouth? | Teeth, Tongue, Salivary Glands |
| What is the composition of the mouth? | Stratified Sqamous Epithelium --> barrier to infection, protect lining of mouth |
| What are the tpes of teeth and their function? | 20 Deciduous, 32 Permanent - oragans of Mastication |
| What is the composition of the Tongue and its function? | Skeletal Muscle - serving in Speech, Mastication, Swallowing, Speech |
| What is teh Lingual Frenulum and where is it located? | tissue that restrsins the Tongue - UNDER Tongue |
| What are the functions of the Salicary Glands? | Lubrication, preliminary Carbohydrate DIGESTION --> Liquify --> enhances Taste and Swallowing |
| What are the 3 types of Salivary Glands? | Parotid, Submandibular, Sublingual |
| Where is the Parotid Salivary Gland located? | duct entry LATERAL to the UPPER 2nd Molars |
| Where are the Submandibular Salivary Glands located? | ducts emerge along bothe side of the Lingual Frenulum |
| Where are the Sublingual Salivary Glands located? | ducts open into FLOOR of Mouth |
| What ANS fibers innervate Salivary Glands? | ALL are innervated by both Sympathetic and Parasympathetic fibers = Dualmotor Innervation |
| Where is the Oropharynx located? | Air/Food passageway behind the Uvula |
| What is the function of the Uvula? | SEALS Oropharynx to keep Food out - causes Snoring |
| What is the function of the Palatine Tonsils? | to GUARD the Orophaynx from infection - located bilaterally |
| What is the Esophagus and where is it located? | Food Conduction Tube - POSTERIOR to the Trachea |
| What is the composition of the Esophagus? | 1st 1/3 = Skeletal Muscle (voluntary), last 2/3 = Smooth Muscle (involuntary), Stratified Squamous Epithelium |
| What is the function of the Esophagus? | initiates Peristalsis |
| What is Peristalsis? | Wavi Contraction along a tube - continuous from mouth --> Anus |
| Where is the Somach located? | UPPER LEFT of Abdominal Cavity |
| What is the function of the Stomach? | Food Storage Organ |
| What is the Esophageal Sphincter? | the Sphincter at the ENTRANCE of the Stomach |
| What is the Pyloric Sphincter? | the Spincter at the EXIT of the Stomach |
| What is the composition of the Stomach? | Smooth Muscle, Simple Columnar Epithelium, Rugae, Gastric Glands |
| What are Rugae? | internal folds of Mucosa |
| What is the function of the Gastric Glands? | produce Gastric Juice = HCI and Enzymes for Protein Digestion |
| What are the subparts of the SMALL Intestine? | 1. Duodenum; 2. Jejunum; 3. Ileum |
| What is teh function of the SMALL Intestine? | site of most Digestion and Absorption |
| What structure of the SMALL Intestine are anchored, by what, and where? | Jejunum, ileum - Mesentery - Dorsal Body Wall |
Created by:
kristel387
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