A&P
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Digestion begins | at the mouth w/ ingestion, chewing & salivation
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| Which enzyme begins the breakdown of food | amylase
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| Pharynx does what to the trachea | closes & seals during swallowing to keep food out of it
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| 3 sections of the pharynx | oropharynx, nasopharynx, laryngeal pharynx
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| Esophagus has 2 sphincters | Upper/hypopharyngeal (prevents air from entering the esophagus during inspiration) & lower/gastroesophageal/cardiac (prevents reflux of food/gastric contents back into the esophagus)
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| 4 sections of the stomach | cardia (proximal end), fundus, body (middle section), antrum
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| What controls the rate @ which food moves through the stomach | gastroesophageal & pyloric sphincters
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| How much gastric juices are produced daily | 1500-3000ml these juices aid in digestion & mixing food w/ chyme
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| Mucosal cells secrete mucus to act as | a lubricant & to protect the stomach lining, synthesize prostaglandins, unsaturated fatty acids,the role of gastrin
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| Stomach's role via hormone is in | hunger & satiety
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| The stomach produces which hormones | Ghrelin which travels to the brain & turns on/off the hunger cells/satiety cells & stimulates gastric emptying
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| The arterial blood supply is through which plexus & venous drainage through | celiac plexus, splenic & gastric vein
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| The small intestine has 3 sections | duodenem, jejunum, ileum
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| Small intestine functions in | digestion, nutrient absorption
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| Small intestine 4 layers are | mucosa: facilitates nutrient absorption, epithelial: covered w/ villi which increase surface area for absorption, muscularis: helps move intestinal contents forward, serosa: helps maintain position of the intestine w/i the abd cavity
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| Instestinal hormones & enzymes are | hormones affect gastric enzymes to stimulate & inhibit gastric motility (motilin, secretin, cholecystokinin), digestive enzymes facilitate absorption of nutrients through small intestine(amylase, trypsin, lipase)
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| Muscle contractions 2 types are | peristalsis & haustral segmentation
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| this muscle contractions | mix the chyme & digestive juices, facilitate nutrient absorption, & moves the mixture forward
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| Intestinal reflex inhibits | motility of small intestine
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| The large intestine receives arterial blood via the | superior & inferior mesenteric artery
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| Intesting 5 primary defense mechanisms are | mucosal barrier, gut motility, gut immunity, gastric acid, gut flora
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| The peritoneum lines the | abdominal cavity & covers most of the intraabdominal organs
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| The 2 functions of the peritoneum are | support abdominal organs & serves as a conduit for blood vessels, lymph vessels, & nerves of abdominal organs
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| The peritoneum as behaves as a | semipermeable membrane
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| The liver is the largest or smallest organ in the body & is located where | largest & RUQ under the diaphragm
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| Kupffer cells filter what | bacteria & foreign substances
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| Glisson capsules is a | connective tissue capsule covering the liver
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| The liver's main 4 functions | meabolize & store nutrients, synthesize clotting factors & breakdown RBCs, detoxify the blood, & produce bile
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| Abdominal xray is good for diagnosing | bowel obstruction, bowel perforation, also id's Ng/feeding tube location
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| Ultrasound is good for | visualization of organs, detecting bile or blood flow obstructions, id ascites
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| CT scan provides | cross section view evaluates massess, abnormalities found, only catches tumors over 2 cm
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| MRI scan |
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Created by:
tauvia2003