Exam 4

Front 1

Exchange of O2 & CO2 across the respiratory membrane is referred to as.....

Back 1

External respiration

Front 2

What respiratory structure has the smallest diameter?

Back 2

Bronchiole

Front 3

This is not a functional process performed by the respiratory system...

Back 3

Transport of respiratory gases

Front 4

What is the correct pattern of air during inhalation?

Back 4

Nasal cavity-> pharynx -> larynx->trachea->bronchi-> bronchioles

Front 5

Nearly all oxygen is carried in the blood as what?

Back 5

Oxyhemoglobin

Front 6

The walls of the alveoli are composed of 2 types of cells, Type l & Type ll. What is the function of Type ll?

Back 6

To secrete surfactant

Front 7

The statement “in a mixture of gases, the total pressure is the sum of the individual partial pressures of gases in the mixtures” paraphrases what law?

Back 7

Dalton’s Law

Front 8

Surfactant helps to prevent the alveoli from collapsing by what?

Back 8

Interfering with the cohesiveness of water molecules, there by reducing the surface tension of alveolar fluid

Front 9

The movement of air into and out of the lungs is referred to as?

Back 9

Pulmonary ventilation

Front 10

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

Back 10

Greater then the pressure in the atmosphere

Front 11

The most powerful respiration stimulus for breathing in a healthy person is?

Back 11

Increase of carbon dioxide

Front 12

Tidal volume is air_______

Back 12

Exchange during normal breathing

Front 13

Which of the following is not a stimulus for breathing?

Back 13

Rising blood pressure

Front 14

What maintains the patency (openness) of the trachea?

Back 14

Cartilage rings

Front 15

The relationship between the pressure and volume of gas is give by?

Back 15

Boyle’s law

Front 16

During the buccal phase of deglutition_________.

Back 16

The tongue presses against the hard palate, forcing the food bolus into the oropharynx.

Front 17

When lipids are digested they form?

Back 17

Glycerol & fatty acids

Front 18

When proteins are digested they form?

Back 18

Amino acids

Front 19

What organ is a major digestive and absorption organ? Pancreatic enzymes enter this organ & functions in the breakdown of fats, carbohydrates, and proteins.

Back 19

Small intestine

Front 20

The enzyme that helps digest a meal high in complex carbohydrates is???

Back 20

Amylase

Front 21

The enzyme responsible for breaking down fats & fatty acids is???

Back 21

Lipase

Front 22

Pepsinogen is converted to pepsin in the stomach when exposed to what?

Back 22

Hydrochloric acid

Front 23

Strictly speaking, __________ refers to the breakdown of food by enzymatic action

Back 23

Digestion

Front 24

What is not a digestive enzyme?

Back 24

Bile

Front 25

What organ is considered an accessory organ of digestion?

Back 25

Liver

Front 26

What organ will not produce any digestive enzymes?

Back 26

Esophagus

Front 27

The organ which produces bile is?

Back 27

Liver

Front 28

This organ releases proteases and hydrochloric acid which kills or inhibits bacteria and provides the acidic pH of two for the proteases to work...

Back 28

Stomach

Front 29

What enzymes has the optimum pH that is acidic?

Back 29

Pepsin

Front 30

What organ has both an endocrine and exocrine function?

Back 30

Pancreas