Exam (elaborations)
NURS 3100 Final Exam – Questions And Answers
NURS 3100 Final Exam – Questions And Answers
[Show more]
Content preview
NURS 3100 Final Exam – Questions And AnswersIngestion of food; Propulsion of food and wastes; Secretion; Mechanical
digestion of food particles; Immune protection ✔️Ans - What are the
functions of the gastrointestinal tract?
Mucosa ✔️Ans - Inner lining that protects against microbes and is the first
line of defense
Submucosa ✔️Ans - Lining that has the function of propulsion
Enteric Plexus ✔️Ans - Intrinsic nerves that control motility, secretion,
sensation and blood flow
Mouth ✔️Ans - Reservoir for chewing and mixing of food with saliva; Taste
buds: salty, sour, bitter, sweet, savory (umami)
Submandibular, sublingual, parotid ✔️Ans - What are the three pairs of
salivary glands?
Alpha Amylase ✔️Ans - Enzyme that breaks down carbohydrates
Saliva ✔️Ans - Water with mucus, sodium, bicarbonate, chloride,
potassium and alpha amylase; controlled by sympathetic and parasympathetic
fibers
Peristalsis ✔️Ans - Coordinated sequential contraction and relaxation of
outer longitudinal and inner circular layers of muscles
Upper Esophageal Sphincter ✔️Ans - Keeps air from entering the
esophagus during respiration
Lower Esophageal Sphincter ✔️Ans - Prevents regurgitation from the
stomach and caustic injury to the esophagus
Oropharyngeal ✔️Ans - Phase of swallowing when food is formed into
bolus and forced toward pharynx; pharynx contracts; respiration inhibited
and epiglottis slides down
,Esophageal ✔️Ans - Phase of swallowing when food bolus enters
esophagus; esophagus relaxes; peristalsis occurs to move food down to lower
esophageal sphincter; food bolus enters stomach
Stomach ✔️Ans - A hollow, muscular organ that stores food, secretes
digestive juices, mixes food with the juices, and propels partially digested food
(chyme)
Cardiac orifice, pyloric sphincter, pylorus ✔️Ans - What are the 3
boundaries of the stomach?
Fundus, body, antrum ✔️Ans - What are the 3 functional areas of the
stomach?
longitudinal (outer), circular (middle), oblique (inner) ✔️Ans - What are
the 3 layers of smooth muscle in the stomach?
Celiac artery ✔️Ans - Where does the blood supply of the stomach come
from?
Swallowing ✔️Ans - Causes relaxation of stomach; facilitated by gastrin
and cholecystokinin
Motilin ✔️Ans - Increases peristalsis
Secretin ✔️Ans - Decreases peristalsis
Gastric mixing and emptying ✔️Ans - Retropulsion; rate dependent on
volume, osmotic pressure and chemical composition
Cephalic, gastric, intestinal ✔️Ans - What are the 3 phases of gastric
secretion?
Cephalic ✔️Ans - Gastric secretion phase stimulated by thought, smell, and
taste of food
Gastric ✔️Ans - Gastric secretion phase stimulated by distension of
stomach
, Intestinal ✔️Ans - Gastric secretion phase stimulated by histamine and
digested protein
Mucus ✔️Ans - Gastric secretion with function of protection; Stimulated by
prostaglandins
Acid and Enzymes ✔️Ans - Gastric secretions with function of breakdown
Hormones ✔️Ans - Gastric secretion with function to help create
peristalsis
Acid ✔️Ans - Secreted by parietal cells; Dissolves food fibers, acts as a
bactericide against swallowed microorganisms, and converts pepsinogen to
pepsin
Pepsin ✔️Ans - Secreted by chief cells; Proteolytic Enzyme that breaks
down protein and forms polypeptides in the stomach
Small Intestine ✔️Ans - 5 to 6 meters long; has 3 segments-Duodenum,
jejunum, ileum; inervated by enteric nerves-Myenteric plexus and submucosal
plexus; Two layers of smooth muscle-Longitudinal (outer) and circular
(inner); absorption through villi
Treitz Ligament ✔️Ans - Separates duodenum and jejunum
Peritoneum ✔️Ans - Membrane surrounding the organs of the abdomen
and pelvic cavity
Gastroduodenal ✔️Ans - Which artery supplies the duodenum?
Superior Mesenteric ✔️Ans - Which artery supplies the jejunum and ilium?
Microvilli ✔️Ans - Increases surface area of small intestine
Brush Border ✔️Ans - Produces mucus layer of small intestine
Laminal Propria ✔️Ans - Contains lymphocytes in small intestine
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 LeCrae. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$28.81. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
60281 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now