Rio Bio 202 Lesson Quiz 5 Study Guide

Front 1

The physiological term for breathing.

Back 1

Pulmonary Ventilation

Front 2

How much volume of air is moved in and out of the lungs during normal, quiet breathing?

Back 2

500 ml

Front 3

The amount of air that can be forcefully inhaled after a normal tidal volume inhalation (2800 ml).

Back 3

Inspiratory Reserve Volume

Front 4

The process by which air is taken into the lungs.

Back 4

Inspiration

Front 5

TV + IRV + ERV = (4800) ml.

Back 5

Vital Capacity (VC)

Front 6

An inspiratory muscle.

Back 6

Diaphragm

Front 7

The apparatus used to measure respiratory volume.

Back 7

Spirometer

Front 8

Sounds produced by air rushing through the trachea and bronchi.

Back 8

Bronchial sounds

Front 9

What is the normal pH of arterial blood (+/- 0.02)?

Back 9

7.4

Front 10

When carbon dioxide enters red blood cells and combines with water, what is formed?

Back 10

Carbonic Acid

Front 11

Air and food are routed in to the proper channels by the

Back 11

Larynx

Front 12

The loudness of a person's voice depends on

Back 12

The force with which air rushes across the vocal folds

Front 13

The smallest macroscopic subdivision of the lung is the

Back 13

Lobule

Front 14

The pleurae are vital to the integrity of the lungs because

Back 14

They produce a lubricating serous secretion, allowing the lungs to glide over the thorax wall during breathing

Front 15

Surfactant helps to prevent the alveoli from collapsing by

Back 15

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

Front 16

For gas exchange to be efficient, the respiratory membrane must be

Back 16

0.5 to 1 micrometer thick

Front 17

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

Back 17

Increase of carbon dioxide

Front 18

In the plasma, the quantity of oxygen in solution is:

Back 18

Only about 1.5% of the oxygen carried in dissolved form

Front 19

Which of the following changes occurs as the conducting tubes of the lungs become smaller?

Back 19

Smooth muscle amount increases

Front 20

The ideal vital capacity of an individual is around:

Back 20

4800

Front 21

Which of the following provide the greatest surface area for gas exchange?

Back 21

Alveoli

Front 22

The respiratory membrane is a combination of:

Back 22

Alveolar and capillary walls and their fused basal lamina

Front 23

A gas emboli may occur because:

Back 23

A diver holds his breath upon ascent

Front 24

Inspiratory capacity is:

Back 24

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

Front 25

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

Back 25

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

Front 26

The factors responsible for holding the lungs to the thorax wall are:

Back 26

Surface tension from pleural fluid, positive pressure, and atmospheric pressure on the thorax

Front 27

Which of the following is not possible?

Back 27

Pressure gradient equals gas flow over resistance

Front 28

Select the correct statement about the physical factors influencing pulmonary ventilation

Back 28

As alveolar surface tension increases, additional muscle action will be required

Front 29

The erythrocyte count increases after a while when an individual goes form a low to a high altitude because:

Back 29

The concentration of oxygen and/or total atmospheric pressure is lower at high altitudes

Front 30

Select the correct statement about oxygen transport in blood:

Back 30

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