Question 1

Which structure of the digestive system synthesizes clotting factors and vitamin K necessary for hemostasis?

Accepted Answer

A)  Colon 
B)  Spleen 
C)  Gallbladder 
D)  Liver 
A)  Colon 
B)  Spleen 
C)  Gallbladder 
D)  Liver

Question 2

MATCHING
Match the hormone from the small intestine with its action.Hormones may be used more than once.
-Decreases gastric motility and constricts pyloric sphincter

Accepted Answer

A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide 
A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide

Question 3

Why are water and electrolytes transported in both directions through tight junctions and intercellular spaces rather than across cell membranes?

Accepted Answer

A)  Because the intercellular hydrostatic pressure is inadequate to push the water and electrolytes across the cell membranes 
B)  Because a balance of cations and ions among the electrolytes on each side of the cell membranes cannot be maintained 
C)  Because the epithelial cell membranes are formed of lipids that are hydrophobic and,thus,repel water 
D)  Because receptors on those cell membranes are occupied with a diffusion of amino acids and monosaccharides 
A)  Because the intercellular hydrostatic pressure is inadequate to push the water and electrolytes across the cell membranes 
B)  Because a balance of cations and ions among the electrolytes on each side of the cell membranes cannot be maintained 
C)  Because the epithelial cell membranes are formed of lipids that are hydrophobic and,thus,repel water 
D)  Because receptors on those cell membranes are occupied with a diffusion of amino acids and monosaccharides

Question 4

Which water-soluble vitamin is absorbed by passive diffusion?

Accepted Answer

A)  Vitamin B6 
B)  Vitamin B1 
C)  Vitamin C 
D)  Folic acid 
A)  Vitamin B6 
B)  Vitamin B1 
C)  Vitamin C 
D)  Folic acid

Question 5

MATCHING
Match the hormone from the small intestine with its action.Hormones may be used more than once.
-Stimulates the gallbladder to eject bile and pancreas to secrete alkaline fluid

Accepted Answer

A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide 
A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide

Question 6

The products of lipid hydrolysis must be made water soluble if they are to be absorbed efficiently from the intestinal lumen.What accomplishes the formation of water-soluble molecules to facilitate this absorption?

Accepted Answer

A)  Micelles 
B)  Phospholipase 
C)  Chylomicrons 
D)  Colipase 
A)  Micelles 
B)  Phospholipase 
C)  Chylomicrons 
D)  Colipase

Question 7

What are the two requirements for calcium at concentrations less than 5 mmol/L to be absorbed through the ileum?

Accepted Answer

A)  Vitamin C and a receptor site on the surface of the ileum 
B)  Vitamin D3 and a carrier protein 
C)  Vitamin K and pepsin 
D)  Vitamin B12 and carboxypeptidase 
A)  Vitamin C and a receptor site on the surface of the ileum 
B)  Vitamin D3 and a carrier protein 
C)  Vitamin K and pepsin 
D)  Vitamin B12 and carboxypeptidase

Question 8

What is the effect of inhibiting the parasympathetic nervous system with a drug such as atropine?

Accepted Answer

A)  Salivation increases 
B)  Salivation decreases 
C)  The pH of saliva changes 
D)  Digestive enzymes are inhibited 
A)  Salivation increases 
B)  Salivation decreases 
C)  The pH of saliva changes 
D)  Digestive enzymes are inhibited

Question 9

The ileum and jejunum are suspended by folds of the peritoneum,which is called the _____,that contain(s)an extensive vascular and nervous network.

Accepted Answer

A)  Treitz ligament 
B)  Mesentery 
C)  Auerbach folds 
D)  Lamina propria 
A)  Treitz ligament 
B)  Mesentery 
C)  Auerbach folds 
D)  Lamina propria

Question 10

Which elements in saliva protect against tooth decay?

Accepted Answer

A)  Salivary-amylase and ptyalin 
B)  Secretin and fluoroxidin 
C)  Endogenous enamelin and salivary ß-amylase 
D)  Exogenous fluoride and a pH 7.4 
A)  Salivary-amylase and ptyalin 
B)  Secretin and fluoroxidin 
C)  Endogenous enamelin and salivary ß-amylase 
D)  Exogenous fluoride and a pH 7.4

Question 11

The presence of chyme in the duodenum stimulates which hormones?

Accepted Answer

A)  Motilin and histamine 
B)  Secretin and cholecystokinin 
C)  Enteroglucagon and gastric inhibitory peptide 
D)  Somatostatin and acetylcholine 
A)  Motilin and histamine 
B)  Secretin and cholecystokinin 
C)  Enteroglucagon and gastric inhibitory peptide 
D)  Somatostatin and acetylcholine

Question 12

What are actions of Kupffer cells?

Accepted Answer

A)  They are natural killers cells and produce interferon gammA. 
B)  They are contractile and may regulate the sinusoid blood flow. 
C)  They are bacteriocidal and metabolize lipids and bilirubin. 
D)  They metabolize estrogen,progesterone,and androgens. 
A)  They are natural killers cells and produce interferon gammA. 
B)  They are contractile and may regulate the sinusoid blood flow. 
C)  They are bacteriocidal and metabolize lipids and bilirubin. 
D)  They metabolize estrogen,progesterone,and androgens.

Exam 36: Structure and Function of the Digestive System

Which structure of the digestive system synthesizes clotting factors and vitamin K necessary for hemostasis?

MATCHING Match the hormone from the small intestine with its action.Hormones may be used more than once. -Decreases gastric motility and constricts pyloric sphincter

Why are water and electrolytes transported in both directions through tight junctions and intercellular spaces rather than across cell membranes?

Which water-soluble vitamin is absorbed by passive diffusion?

MATCHING Match the hormone from the small intestine with its action.Hormones may be used more than once. -Stimulates the gallbladder to eject bile and pancreas to secrete alkaline fluid

The products of lipid hydrolysis must be made water soluble if they are to be absorbed efficiently from the intestinal lumen.What accomplishes the formation of water-soluble molecules to facilitate this absorption?

What are the two requirements for calcium at concentrations less than 5 mmol/L to be absorbed through the ileum?

What is the effect of inhibiting the parasympathetic nervous system with a drug such as atropine?

The ileum and jejunum are suspended by folds of the peritoneum,which is called the _____,that contain(s)an extensive vascular and nervous network.

Which elements in saliva protect against tooth decay?

The presence of chyme in the duodenum stimulates which hormones?

What are actions of Kupffer cells?

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Innate Immunity Including Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation Including Hypersensitivies

Infection Including Hivaids

Stress and Disease

Biology of Cancer

Tumor Invasion and Metastasis

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Concepts of Neurologic Dysfunction

Disorders of Neurologic Function

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Reproductive Systems

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations in Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Pulmonary Function in Children

Filters