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Digestive Anatomy

Mod 2

What is a Flattened Palate? compromised swallowing soft palate muscle seperates oral cavity from nasal cavity in swallowing
Palate Innervation CN X - 4th branchial arch CN XI push food down
What two diseases affect swallowing? Lou Gehrig's (ALS) - motor neuron Myasthenia Gravis - myoneural junction
function of CN IX (stylopharyngeus) pick food up
Muscle of the Pharynx superior constrictor middle constrictor inferior constrictor
Dysphagia problem swallowing
Swallowing Reflex superior pharyns (CN IX) -> brainstem -> CN X-palate up seperate oral cavity from nasal cavity
Gag Reflex stimulation of mucous membrane - upper pharynx sensory to superior pharynx (CN IX) same reaction as swallowing - tongue down, pharynx contracts
Salivary Glands Submandibular and sublingual (CN VII) drainage to sublingual papillae
What is the largest salivary gland parotid gland
What is the motor innervation of the parotid gland? CN IX parasympathetic preganglionic parasympathetic postganglionic
where does the parotid gland drain to? parotid duct parallels the zygomatic arch drains to oral cavity at level of 2nd upper molar
What is hiatal hernia? herniation of the abdominal esophogus into thoraxic cavity
What are the 3 openings in the diaphragm? esophagus inferior Vena Cava Descending abdominal Aorta
What is Sliding Hiatal hernia? abdominal portion of esophagus + cardia of stomach + fundus of stomach -> thoraxic cavity regurgitation of stomach content
What is Paraesophageal Hiatal Hernia? part of fundus of stomach herniates into diaphragm no regurgitation less common
Where is the Left Colic Flexure? Descending Colon
Where is the head of the Pancreas located? hook of the duodenum
What is Peritonitis? inflammation of peritonuem - stomach lining dangerous - fecal matter release
What is Peritoneal Adhesion? interferes with movement of viscera painful
Duodenum drainage Gall Bladder -> Cystic Duct Liver -> Common Hepatic Duct Bile Duct = Cystic Duct + Common Hepatic Duct Pancreatic Duct -> pancreas Duodenal Papilla (opening)
What is Gall Stone Cholesterol concretions narrowest part of the biliary passages found in hepatic and cystic ducts - sometimes pancreatic duct difficult for enzymes to gain access to digest food
Portal Triad Hepatic Artery Bile Duct Portal Vein = Splenic + superior mesenteric vein
Giant Cell Arteritis Inflammation of Superior Mesenteric Artery due to internal elastic lamina (short posterior ciliary artiers) superificial temporal artery affected
Referred Pain from Liver, Gall Bladder and Duodenum Nerves Phrenic Nerves (C 3,4,5) Superclavicular Nerve (C2,3,4) - shoulder
Diverticulitis inflammation of sigmoid colon peritonitis of lower left abdomen
Appendicitis Pain in umbilicus area (T10) at vermiform appendix
Colitis inflammation of colon and rectum Ileostomy - opening between ileum and skin of anterior abdominal wall colonscopy
Created by: prinny916



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