Exam (elaborations)
BY 101 Chp 19 Questions and and answers (1)
BY 101 Chp 19 Questions and and answers (1)
[Show more]
Seller
Follow
Content preview
BY 101 Chp 19Digestive System - ✅✅-metabolizes food to be used for energy by the body
digestive tract - ✅✅-long tube with openings at the mouth and anus
mechanical digestion - ✅✅-physical breakdown of food (teeth grind food to increase
surface area for enzyme exposure)
chemical digestion - ✅✅-salivary glands secrete saliva and enzymes in saliva break down
sugars
tongue - ✅✅-muscular structure in mouth; forms a bolus (ball of food) and pushes it to the
back of the mouth
Pharynx - ✅✅-forms the back of the throat and branches into 2 tubes- trachea and
esophagus
trachea - ✅✅-leads to the lungs
esophagus - ✅✅-leads to the stomach
Epiglottis - ✅✅-thin flap of cartilage below the tongue; keeps swallowed food from entering
the trachea
lower esophageal sphincter - ✅✅-ring of muscles at base of esophagus; prevents backflow
of stomach contents in lower esophagus
Peristalsis - ✅✅
-rhythmic waves of involuntary, smooth muscle contractions push food
down esophagus to stomach
pyloric sphincter - ✅✅-found at the base of the stomach; regulates chyme secretion in
small intestine
small intestine -✅✅ -long tube (20 ft in adults) that absorbs nutrients and alcohol into
bloodstream via epithelium
accesory organs - ✅✅-outside of the digestive tract but produce or secrete substances for
digestion
pancreas - ✅✅ -produces secretions to neutralize stomach acids and enzymes to digest
carbohydrates, fats, proteins, and nucleic acids
✅✅
liver - -produces bile to help dissolve fats in the small intestine; helps metabolize toxins
(alcohol and drugs)
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 lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75759 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now