ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
4th Edition
ISBN: 9781265061173
Author: McKinley
Publisher: MCG CUSTOM
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Textbook Question
Chapter 26, Problem 3DYKB
_____ 3. Which of the following is an unregulated process in the digestive tract?
- a. secretion of cholecystokinin (CCK) by the duodenal mucosa
- b. absorption of amino acids across epithelium of the small intestine
- c. release of bicarbonate ion (HCO3−) by pancreatic duct cells
- d. peristalsis in the stomach
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Which of the following is an unregulated process in the digestive tract?
a. secretion of cholecystokinin (CCK) by the duodenal mucosa
b. absorption of amino acids across the epithelium of the small intestine
c. release of bicarbonate ion (HCO3–) by pancreatic duct cells
d. peristalsis in the stomach
A5) The chief cells of the stomach secrete _______.
Group of answer choices
Pepsinogen
Gastrin
HCl
Mucous
Intrinsic factor
A6) The parietal cells of the stomach secrete intrinsic factor.
Group of answer choices
False
True
A7) Once the bolus enters the stomach and mixes with gastric juices, the result is referred to as ___________________________.
Group of answer choices
Bicarbonate
Food
Mucous
Bolus
Chyme
A8) In order for enzymatic activity to occur in the stomach to begin to break down proteins, a ____________ pH is required.
Group of answer choices
Low
High
Histological evaluation of a portion of gastrointestinal tract shows ramified, tubular glands located in
submucosal layer. The glands contain secretions with pH
close to 9.0. Which of the following portions of the gastrointestinal tract is most
likely inspected?
A. Stomach
B. Duodenum
C. Jejunum
D. lleum
E. Ascending colon
Chapter 26 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
Ch. 26.1 - How is the gastrointestinal (GI) tract...Ch. 26.1 - Prob. 2WDYLCh. 26.1 - What specific layer(s) must substances cross to...Ch. 26.1 - Prob. 4WDYLCh. 26.1 - Prob. 5WDYLCh. 26.1 - Prob. 6WDYLCh. 26.1 - Prob. 7WDYLCh. 26.1 - Prob. 8WDYLCh. 26.1 - Prob. 9WDYLCh. 26.2 - What structures are considered part of the upper...
Ch. 26.2 - Prob. 11WDYLCh. 26.2 - Prob. 12WDYLCh. 26.2 - How is the bolus moved from the oral cavity into...Ch. 26.2 - Prob. 14WDYLCh. 26.2 - Prob. 15WDYLCh. 26.3 - What organs are considered part of the lower GI...Ch. 26.3 - What are the three anatomic structures that...Ch. 26.3 - Prob. 18WDYLCh. 26.3 - Diagram the ducts of the accessory digestive...Ch. 26.3 - Prob. 20WDYLCh. 26.3 - Prob. 21WDYLCh. 26.3 - Prob. 22WDYLCh. 26.3 - Prob. 23WDYLCh. 26.3 - Which substances are typically absorbed by the...Ch. 26.4 - What enzymes are required to completely break down...Ch. 26.4 - How are proteolytic enzymes activated in the...Ch. 26.4 - What is the function of bile salts in lipid...Ch. 26.4 - Prob. 28WDYLCh. 26.4 - Prob. 29WDYLCh. 26.4 - Prob. 30WDYLCh. 26 - _____ 1. Which organ is located in the right upper...Ch. 26 - _____ 2. The _____ cells of the stomach are...Ch. 26 - _____ 3. Which of the following is an unregulated...Ch. 26 - _____ 4. Which organ (or part of an organ) is...Ch. 26 - _____ 5. Pancreatic juice contains a. HCO3 and...Ch. 26 - _____ 6. Bile is transported through the a....Ch. 26 - _____ 7. Digestion of proteins begins in the a....Ch. 26 - Prob. 8DYKBCh. 26 - _____ 9. Digestive enzymes that chemically digest...Ch. 26 - _____ 10. Most of the absorption of our digested...Ch. 26 - The GI tract from the esophagus to the anal canal...Ch. 26 - Discuss the reason why the involuntary sequence of...Ch. 26 - Prob. 13DYKBCh. 26 - Compare the structure of the circular folds,...Ch. 26 - Discuss why the tunica mucosa in the colon has a...Ch. 26 - Prob. 16DYKBCh. 26 - What is the role of the gallbladder in digestion?Ch. 26 - Describe the different forms of mechanical...Ch. 26 - Prob. 19DYKBCh. 26 - How are lipids absorbed in the GI tract?Ch. 26 - Prob. 1CALCh. 26 - Prob. 2CALCh. 26 - What component of the digestive tract can you not...Ch. 26 - The pancreatic ducts are blocked with a thick,...Ch. 26 - Prob. 5CALCh. 26 - Alexandra experienced vomiting and diarrhea and...Ch. 26 - A key event in the chemical digestion processes...Ch. 26 - Most cases of colorectal cancer occur in the most...
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- a patient with peritonitis has an inflammation of which of the following? A. the mucosa of the stomach B. the submucosa C. the outer lining of the intestines D. the pancreatic ductsarrow_forwardThe of the stomach are responsible for the formation of hydrochloric acid (HCI). a. chief cells b. parietal cells C. mucous cells d. G-cellsarrow_forwardThe pancreatic ducts are blocked with a thick, sticky mucus in individuals with the genetic condition called cystic fibrosis. What difficulties will these individuals experience? a. inability to produce mucin b. inability to produce HCl c. insufficient digestive enzymes d. excess production of bilearrow_forward
- A13) Cholecystokinin acts on the __________to cause contractions and release of bile into the duodenum of the small intestine. Group of answer choices Gallbladder Pancreas Liver A14) Absorption of water is the job of the __________. Group of answer choices Stomach Esophagus Mouth Large intestine Small intestine A15) Carboxypeptidase is an enzyme involved in the chemical digestion of _________. Group of answer choices Lipids Nucleic Acids Proteins Carbohydrates A16) The acidic nature of chyme is neutralized by bicarbonate secreted by the ______. Group of answer choices Small Intestine Stomach Liver Pancreas Salivary Glandsarrow_forwardidentify and describe the following digestive system disorders and their causes. A. Acid reflux B. Heartburn C. Gastric ulcersarrow_forwardThere are two different kinds of secretions associated with the digestive system that needs to be understood to avoid confusion when describing how the digestive system functions. Which one of these secretions will be involved in the control of digestion through the blood? A.Endocrine B.Exocrinearrow_forward
- One of the following hormones decreases the translocation of the H+/K+ channels on the apical membrane of parietal cells and therefore decreases HCI production by the stomach: a. Gastrin b. Acetyl choline c. Histamine d. Somatostatinarrow_forwardThe normal mechanism of defecation involves:A. Stretch receptors located in the duodenum and jejunum initiate a long-lasting reflex that relaxes the internal anal sphincter several hours after food initially passes from the stomach to the intestines.B. Stretch receptors located in the rectal wall initiate the defecation reflex inresponse to an incoming mass movement.C. The defecation reflex involves contraction of the rectal wall and simultaneous relaxation of the internal anal sphincter.D. Digestive fluids secreted from the pancreas and gall bladder contain enzymesthat act on the smooth muscle of the intestine, stimulating peristalsis.E. Conscious signals from the cortex will allow for relaxation of the external anal sphincter (when appropriate!).arrow_forwardWhich hormone controls the release of bile from the gallbladder a. pepsin b. amylase c. CCK d. gastrinarrow_forward
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