NURS 6010 Exam 4 Practice Questions And Already Passed Answers.
0 view 0 purchase
Course
NURS 6010
Institution
NURS 6010
What are the functions of the GI system? - Answer -ingestion of food
-propulsion of food and wastes from mouth to anus
-secretion of mucus, water, and enzymes
-mechanical digestion of food particles
-chemical digestion of food particles
-absorption of digested food
-elimination of waste pr...
NURS 6010 Exam 4 Practice Questions
And Already Passed Answers.
What are the functions of the GI system? - Answer -ingestion of food
-propulsion of food and wastes from mouth to anus
-secretion of mucus, water, and enzymes
-mechanical digestion of food particles
-chemical digestion of food particles
-absorption of digested food
-elimination of waste products by defecation
-immune and microbial protection against infection
How long is the GI tract? - Answer 7 meters
What are the voluntary functions of the GI system? - Answer -chewing
-swallowing
-defecation
What are the involuntary functions of the GI system? - Answer -peristalsis
-digestion
-absorption
What are the involuntary functions of the GI system controlled by? - Answer autonomic NS and
hormones
What are the 4 layers of the GI tract? - Answer -mucosa
-submucosa
-muscularis
,-serosa
What characterizes the mucosa of the GI tract? - Answer innermost lumen that has mucosal epithelium
What characterizes the submucosa of the GI tract? - Answer second layer that contains various ducts
and glands
What characterizes the muscularis of the GI tract? - Answer third layer that has both circular and
longitudinal muscle layers
What characterizes the serosa of the GI tract? - Answer connective tissue that helps hold the various
components of the GI tract in place
The GI system is controlled by the ______________ NS and the _____________ and ____________
divisions both innervate the stomach - Answer autonomic; sympathetic and parasympathetic
What is the primary neurotransmitter of the parasympathetic NS? - Answer acetylcholine
A(n) _____________ in acetylcholine stimulates the GI tract, while a(n) ____________ in acetylcholine
decreases GI activity - Answer increase; decrease
What is the enteric nervous system? - Answer part of the autonomic NS that innervates the small
intestine and its neurons are located solely within the GI tract
The enteric NS is not affected by the ___________ nerve, so if it is severed or damaged, the enteric NS in
the GI tract can still function - Answer vagus
What effect do sympathetic nerves have on the GI tract? - Answer inhibit motility and cause
vasoconstriction
What effect do parasympathetic nerves have on the GI tract? - Answer regulates secretion, motility,
and intestinal reflexes (e.g., relaxation of the lower esophageal sphincter)
,What effect does vagal stimulation have on the GI tract? - Answer promotes peristalsis and
segmentation
What is the enteric plexus made up of? - Answer -submucosal plexus
-mesenteric plexus
-subserosal plexus
What do the enteric plexus nerves do? - Answer help regulate motility, blood flow, absorption,
secretions, and the immune response
What are chemoreceptors in the mouth? - Answer taste buds
Which nerve is taste associated with? - Answer olfactory
How many permanent teeth does the adult mouth have? - Answer 32
What is one of the primary causes of poor dental health? - Answer smoking
How much saliva do salivary glands secrete each day? - Answer 1 liter
What is the role of salivary amylase? - Answer increases lubrication and helps break down
carbohydrates
What are the 3 different salivary glands? - Answer -parotid
-submandibular
-sublingual
The parotid gland is very large and is a common site of ____________, typically _____________, as well
as a site of ____________ - Answer stones; calcium stones; infection
, What are the salivary glands stimulated by? - Answer cholinergic parasympathetic fibers
What is the function of saliva? - Answer -protective of teeth
-neutralizes bacterial acids
-has some antimicrobial properties to prevent infection
-mucin lubricates food
What is a characteristic finding in mumps? - Answer unilateral parotid gland swelling
The esophagus contains a mixture of ____________ and __________ muscle - Answer striated and
smooth
The upper 3rd of the esophagus is ___________, the middle section is _________, and the lower 3rd is
___________ and is innervated by the ___________ nerve - Answer mainly striated; a mix; smooth
muscle; vagus
What are the 2 sphincters that are critical for swallowing? - Answer cricopharyngeal muscle and lower
cardiac sphincter
What is the function of the cricopharyngeal muscle? - Answer prevents air from entering the
esophagus
What is the function of the lower cardiac sphincter? - Answer helps control movement of food into the
stomach
What is the function of the epiglottis? - Answer folds downward to prevent food from entering the
larynx and the trachea when swallowing
What are the 3 parts of the stomach? - Answer -fundus - upper portion
-body - middle portion
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TestSolver9. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
