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33 notecards = 9 pages (4 cards per page)

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BIOL 2402: Exam 4

front 1

Air moves out of the lungs when the pressure inside the lungs is .

back 1

greater than the pressure in the atmosphere

front 2

The relationship between gas pressure and gas volume is describes by .

back 2

boyle's law

front 3

The statement " in a mixture of gases, the total pressure is the sum of the individual partial pressures of gases in the mixture" paraphrases .

back 3

dalton's law

front 4

Surfactant helps to prevent the aveoli from collapsing by .

back 4

interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid.

front 5

With the Bohr effect, more oxygen is released because an .

back 5

decrease in pH (acidosis) weakens the hemoglobin-oxygen bond

front 6

The local matching of blood flow with ventilation is .

back 6

ventilation-perfusion coupling

front 7

The most powerful respiratory stimulus for breathing in a health person is .

back 7

increase of carbon dioxide

front 8

The pyloric sphincter regulates passage of chyme from the stomach into the duodenum.

back 8

true

front 9

Tidal volume is air .

back 9

exchange during normal breathing

front 10

Possible causes of hypoxia include .

back 10

too little oxygen in the atmosphere

front 11

Which statement about CO2 is incorrect?

back 11

more CO2 dissolves in the blood plasma than is carried in the RBCs.

front 12

Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by .

back 12

diffusion

front 13

How is the bulk of carbon dioxide carried in blood?

back 13

as the bicarbonate ion in the plasma after first entering the red blood cells

front 14

What does NOT influence hemoglobin saturation?

back 14

nitric oxide

front 15

Smoking diminishes ciliary action and eventually destroys cilia.

back 15

true

front 16

Alcohol id first absorbed at the .

back 16

stomach

front 17

The type of tooth responsible for tearing and shredding is the .

back 17

canine

front 18

The function of the hepatic portal circulation is to .

back 18

collect absorbed nutrients for metabolic processing or storage.

front 19

What hormone causes an increased output of enzymes-rich pancreatic juice and stimulates gallbladder contraction to release bile?

back 19

cholecystokinin

front 20

This statement is true concerning the number and type of permanent teeth:

back 20

there are 32 permanent teeth, and the wisdom teeth are the last to emerge.

front 21

Saliva does NOT .

back 21

contain enzymes that begin the breakdown of proteins

front 22

Hydrochloric acid is secreted by the of the stomach.

back 22

parietal cells

front 23

There are three phases of gastric secretion. The cephalic phase occurs .

back 23

before food enters the stomach and is triggered by aroma, sight, or thought.

front 24

Pepsinogen, a digestive enzyme, is secreted by the .

back 24

chief cells of the stomach

front 25

You have just eaten a meal high in complex carbohydrates. What enzymes will help to digest the meal?

back 25

amylase

front 26

The ducts that deliver bile and pancreatic juice from the liver and pancreas, respectively, unite to form the .

back 26

hepatopancreatic ampulla

front 27

What vitamin requires intrinsic factor in order to be absorbed?

back 27

B12

front 28

Digestion of would be affected the most if the liver was damaged

back 28

lipids

front 29

What is an essential role played by large intestine bacteria?

back 29

synthesize vitamin K and B-complex vitamins

front 30

Surgical cutting of the ligual frenulum would occur in the part of the body.

back 30

oral cavity

front 31

The part of the peritoneum that covers the external surfaces of most digestive organs is the visceral peritoneum.

back 31

true

front 32

What part of the tooth bears the force of chewing?

back 32

enamel

front 33

portal triads contain a branch of the hepatic artery, hepatic portal vein and bile duct.

back 33

true