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Exam (elaborations)

GI CNM Exam Questions And Correct Answers

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GI CNM Exam Questions And Correct Answers...

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  • October 13, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • GI CNM
  • GI CNM
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Stetson
GI CNM Exam Questions And Correct Answers


mouth, pharynx, esophagus, stomach, small intestine, large intestine, anus - ANSWER
GI Tract

teeth and tongue, salivary glands, gallbladder, liver, pancreas - ANSWER Accessory
Digestive Organs



Ingestion - ANSWER intro of food into stomach



Mastication - ANSWER -chewing

-chemical digestion requires large surface area so breaking down large particles
mechanically facilities chemical digestion



Propulsion - ANSWER -movement of food 24-36 hours oral to anal

-wave of circular smooth muscle relaxation moves ahead of the bolus of food allowing
digestive tract to expand



Segmental Contractions - ANSWER contractions do not propel food from one end of the
digestive tract to the other but moves it back and forth within the digestive tract to mix it
with digestive secretions and make smaller pieces



Chemical digestion - ANSWER starts at the end of stomach



Mechanical digestion - ANSWER chewing, churning, segmentation



absorption - ANSWER nutrients and water to blood vessels and lymph vessels



Enteric Nervous System - ANSWER coordinates peristalsis and regulates local reflexes

, Parasympathetic Primarily - ANSWER through vagas nerve



Sympathetic - ANSWER muscle contraction, secretion, decrease blood flow to digestive
tract



Chemical Regulation - ANSWER -production of hormones (gastrin, secretin)

-production of paracrine chemicals like histamine



Chewing - ANSWER -incisors and canines bite or cut food

-molar grind food



Mastication Reflex - ANSWER -medulla oblongata provides involuntary but descending
pathways from cerebrum provide conscious control



Parotid Gland - ANSWER largest and just anterior to the ear



Submandibular Gland - ANSWER Duct enters oral cavity on either side of lingual
frenulum



Sublingual Gland - ANSWER smallest and each has 10-12 ducts that enter the floor of
the oral cavity



Saliva - ANSWER -prevents bacterial infection

-helps to form bolus for swallowing

- parasympathetic input causes salivation



Pharynx - ANSWER contains group of muscles called pharyngeal constrictors which
contribute to swallowing

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