Exam 3: Respiratory/digestive (part 3)
Only digestive structure with three muscle layers
C Stomach
Produces intrinsic factor.
C Stomach
Identify three ways the small intestine is modified to increase the surface area for digestion and absorption
Circular folds - slow chyme Villi - increase surface area Microvilli - bear enzymes & increase surface area
Cell type specialized to secrete mucus into the lumen of the intestinal tract
D Goblet cells
Produces enzymes that break down all categories of foodstuffs
D Pancreas
What pressure will be present in the space labeled "4"? A) alveolar pressure B) atmospheric pressure C) subalveolar pressure D) intrapleural pressure E) intrapulmonary pressure
D) intrapleural pressure
Bacteria process undigested chyme from the small intestine.
E Large intestine
What is the relationship between the pressures at label "8"? A) P outside > P inside B) P outside - P inside C) P outside = P inside D) P outside + P inside E) P outside < P inside
E) P outside < P inside
Main function is to filter and process the nutrient-rich blood delivered to it
A Liver
Receives blood via the hepatic portal system
A Liver
Structures that increase the absorptive area of the small intestine
A Villi
Absorptive cells that line the intestinal tract
B Enterocytes
Contains the brush border enzymes that complete digestion of carbohydrates and proteins
B Small intestine
Increases surface area for absorption via villi and microvilli
B Small intestine
What is the relationship between the pressures at label "3"? A) P outside - P inside B) P outside > P inside C) P outside < P inside D) P outside = P inside E) P outside + P inside
B) P outside > P inside
How does the pressure "P4" at label "4" compare to the pressure "P5" at label "5"? A) P4 is lower than P5 during inhalation and then higher during exhalation. B) P4 is always lower than P5. C) P4 always equals P5. D) P4 is higher than P5 during inhalation and then lower during exhalation
B) P4 is always lower than P5.