Exam 3 Respiratory System

Front 1

No exchange of gases occurs here

Back 1

Segmental bronchi

Front 2

Secrete a fluid containing surfactant

Back 2

Type 2 Cells

Front 3

Where the respiratory zone of the lungs begins

Back 3

Respiratory Bronchioles

Front 4

Composed of simple squamous epithelium

Back 4

Type 1 cells

Front 5

Terminates in alveoli

Back 5

Alveolar duct

Front 6

TRUE or FALSE. Ventilation perfusion coupling means that more blood flows past functional alveoli than past nonfunctional alveoli

Back 6

True

Front 7

TRUE or FALSE. The functions of nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air

Back 7

TRUE

Front 8

TRUE or FALSE. Intrapleural pressure is normally about 4mmhg less than the pressure in the Alveoli

Back 8

True

Front 9

TRUE or FALSE The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase

Back 9

FALSE

Front 10

TRUE or FALSE Increase temperature results in decreased O2 unloading from hemoglobin

Back 10

FALSE

Front 11

TRUE or FALSE The parietal pleura line the thoracic wall

Back 11

TRUE

Front 12

Oxygenated hemoglobin releases oxygen more readily when the pH is more basic

Back 12

FALSE

Front 13

Which of the following below is not a functional process performed by the respiratory

Back 13

Transport of respiratory gases

Front 14

They walls of alveoli are composed of two types of cells, type 1 and type 2. The function of type 2 is to

Back 14

Secrete surfactant

Front 15

Unlike inspiration, expiration is a passive act because no muscular contractions are involve. Expiration, however,depends on two factors. Which of the choice below list those two factors?

Back 15

The recoil of elastic fibers that were stretched during inspiration and the inward pull off surface tension due to film of alveolar fluid

Front 16

Which of the following maintains the patency (openness) of the trachea?

Back 16

Cartilage rings

Front 17

The relationship between the pressure and volume of gases is given by

Back 17

Boyles law

Front 18

Surfactant helps to prevent the alveoli from collapsing by

Back 18

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

Front 19

With the Borh effect, more oxygen is released because a

Back 19

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

Front 20

The most powerful respiratory stimulus for breathing in a healthy person is

Back 20

Increase of carbon dioxide

Front 21

In the plasma, the quantity of oxygen in solution is

Back 21

Only about 1.5% of the oxygen carried in dissolved form

Front 22

Which of the following statement is incorrect?

Back 22

Respiratory rate is lowest in newborn infants

Front 23

Which of the following is not form of lung cancer

Back 23

Kaposi's sarcoma

Front 24

Which of the following is not an event necessary to supply the body with O2 and dispose of CO2

Back 24

Blood pH adjustment

Front 25

Tidal volume is air

Back 25

Exchange during normal breathing

Front 26

Which of choices below determine of respiratory gas movement?

Back 26

Partial pressure gradient

Front 27

The lungs volume that represents the total volume of exchangeable air is the

Back 27

Vital Capacity

Front 28

Respiratory control center are located in the

Back 28

Medulla and pons

Front 29

The amount of air that can be inspired above the Tidal volume is called

Back 29

Inspiratory reserve

Front 30

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

Back 30

Diffusion

Front 31

Which respiratory associated muscle would contract if you were to blow up a balloon?

Back 31

Internal intercostal and abdominal muscles would contract

Front 32

Which of the following is not found on the right lobe of the lungs?

Back 32

Cardiac notch

Front 33

Which of the following correctly describes mechanism of CO2 transport?

Back 33

Attached to the heme part of hemoglobin

Front 34

Factors that influence the rate and depth of breathing include

Back 34

Voluntary cortical control

Front 35

Gas emboli may occur because a

Back 35

Diver holds his breath upon ascent

Front 36

Inspiratory capacity is

Back 36

The total amount of air that can be inspired after a Tidal expiration

Front 37

A premature baby usually has did difficulty breathing. However, the respiratory system is developed enough for survival by

Back 37

28 weeks

Front 38

Which of the following statements is true regarding the respiratory rate of a newborn?

Back 38

The respiratory rate of a newborn is, at its highest rate, approximately 40-80 respiration per minute

Front 39

Select the correct statement about the neural mechanism of respiratory control

Back 39

The pons is thought to be instrumental in the smooth transition from inspiration to expiration

Front 40

The erythrocyte count increases after while when an individual goes from a low high altitude because the

Back 40

Concentration of oxygen and total atmospheric pressure is lower at high altitudes

Front 41

Most inspired particles such as dust fail to reach the lungs because of the

Back 41

Ciliated mucous lining in the nose

Front 42

Select the correct statement about oxygen transport in blood

Back 42

A 50% oxygen saturation level of blood returning to the lungs might indicated and activity level higher than normal

Front 43

Which of the disorder below is characterized by destruction of the walls of the alveoli producing abnormal large air that remain filled with air during exhalation?

Back 43

Emphysema

Front 44

Which of the following does not influence hemoglobin saturation

Back 44

Nitric oxide

Front 45

Type 2 alveolar cells secrete

Back 45

Surfactant

Front 46

Is the most common lethal genetic disease in the United States

Back 46

Cystic fibrosis

Front 47

The cartilaginous flap that closes the Trachea during swallowing is called the

Back 47

Epiglottis

Front 48

The trachea is line with

Back 48

Ciliated pseudostratified columnar epithelium

Front 49

Terminal bronchioles are linen with

Back 49

Cuboidal Epithelium