How does the structure at each point along the GI tract pathway
enable its digestive functions? Think of this from the perspective
of type of tissue and other structural adaptations to facilitate
function.
Which statement among A-E is false concerning digestive
system and gastrointestinal (GI) tract infections?
A.
Dysentery is a more severe form of gastroenteritis
producing abdominal cramps, fever, and blood.
B.
Rehydration and electrolyte replacement are typically
the treatment for those with GI tract infections.
C.
Invasive GI tract infections are caused by intracellular
pathogens such as Salmonella and certain E coli.
D.
Among protozoal pathogens, Giardia is a major cause of
gastroenteritis.
E.
Most GI tract infections are due to...
Chapter 23
•
Identify the route
and main structures along the GI tract including
sphincters
•
Describe the layers
of the GI tract along the route
•
Explain the various
processes along the route including mastication, peristalsis,
segmentation, deglutition, and elimination
•
Differentiate
between mechanical and chemical digestion along the GI tract
route
•
Understand the
structure of the stomach and the chemical processes that occur here
including the formation and role of chyme and gastric
juice
•
Know the...
Which of the following reflexes speeds-up (enhances) the
movement of material along the GI tract? (in the direction of the
rectum or “downstream”)
Group of answer choices
A. Gastroileal reflex
B. Gastrocolic reflex
C. Enterogastric reflex
A and B
A, B, and C
Considerable communication along the digestive tract occurs as
feedforward signals. From the examples below, select all that
represent feedforward mechanisms.
1. When stomach content enters the duodenum, the contractions in
the ileum increase in strength
2. The smell of food increases stomach motility via the vagus
nerve
3. Mass movements tend to occur ∼ 30 minutes after eating a
meal.
4. When feces enter the rectum, the internal anal sphincter
relaxes.
5. Increased movements of the large intestine prevents water...
Know the order of the digestive tract from the mouth to the
anus:
What organ does the pancreas deliver enzymes to:
The function of hydrochloric acid in the digestive system is
What are the following
Haustra
Peyers patches
Rugae
Villi
What are the functions of the large intestines?
Where is gastrin produce and what cells produce it: