LAB 51

Question 1

the size of the thoracic cavity is increased by contractions of all of the following muscles except:
diaphragm
external intercostals
pectoralis minor
external oblique

Answer 1

external oblique

Question 2

a ______ is an instrument to measure air volumes during breathing

Answer 2

Spirometer

Question 3

the _____ is the maximum volume of air that can be exhaled after taking the deepest breath possible

Answer 3

Vital capacity

Question 4

tidal volume is estimated to be about

Answer 4

500 mL

Question 5

a normal resting breathing rate is about ______ breaths per minute

Answer 5

12-15

Question 6

the contraction of the diaphragm increases the size of the thoracic cavity (t/f)

Answer 6

T

Question 7

vital capacity is the total of tidal volume, expiratory reserve volume, and residual volume (t/f)

Answer 7

False

Question 8

vital capacities gradually decrease as a persons continues to age (t/f)

Answer 8

True

Question 9

when using the lung function model the rubber sheeting is represented by

Answer 9

Diaphragm

Question 10

the y tube

Answer 10

Trachea

Question 11

the bell jar

Answer 11

Chest wall

Question 12

the balloon

Answer 12

Lungs

Question 13

when the diaphragm contracts the size of the thoracic cavity

Answer 13

Increases

Question 14

the ribs are raised primarily by contraction of the _______ muscles which increases the size of the thoracic cavity

Answer 14

External intercostals

Question 15

the primary muscles that help to force out more than the normal volume of air, by pulling the ribs downward and inward, are the _______

Answer 15

Internal intercostals

Question 16

we inhale when the diaphragm

Answer 16

Contracts

Question 17

volume of air in addition to tidal volume that leaves the lungs during forced expiration

Answer 17

expiratory reserve volume

Question 18

vital capacity plus risidual volume

Answer 18

Total lung capacity

Question 19

volume of air that remains in lungs after the most forceful expiration

Answer 19

risidual volume

Question 20

volume of air that enters or leaves lungs during a respiratory cycle

Answer 20

tidal volume

Question 21

volume of air in addition to tidal volume that enters lungs during forced inspiration

Answer 21

inspiratory reserve volume

Question 22

maximum volume of air a person can exhale after taking the deepest possible breath

Answer 22

vital capacity

Question 23

maximum volume of air a person can inhale following exhalation of the tidal volume

Answer 23

inspiratory capacity

Question 24

volume of air remaining in the lungs following exhalation of the tidal volume

Answer 24

functional risidual capacity