Postlab Quiz 12 Flashcards Preview

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Flashcards in Postlab Quiz 12 Deck (156)
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1

Left lung has this many lobes, and the right lung has this many lobes

2
3

2

Flow of air into the lungs

trachea
primary bronchus
bronchial tree
terminal bronchioles
respiratory bronchioles
alveolar sacs
alveoli

3

Most gas exhange takes place here

alveoli (alveolar sacs)

4

Some gas exchange takes place here

respiratory bronchioles

5

Conducting zone of respiratory system includes

larynx
thyroid cartilage
cricoid cartilage
trachea
carina
right and left primary branchus

6

Gas exchange takes place in this zone

respiratory zone

7

Type 1 alveolar cells form thsi

the wall

8

type 2 alveolar cells form this

surfactant

9

look up what surfactant is

okay

10

Macrophages do this

take out any pathogens or debris inside the alvoli

11

Flow of O2 and CO2 in the respiratory zone

O2 into the capillary from the alveolus
CO2 into the alveolus from the capillary

12

Two types of breathing

normal
forced

13

These contract in normal breathing and have this affect

diaphragm
external intercostals
expansion of the thorasic cavity and lung volume, decreasing intrapulmonary pressure to about -3mmHg

14

These contract in forced (inhalation) breathing and have this affect

diaphragm
external intercostals
sternocleidomastoid
scalenes
parasternal intercostals
expansion of lung capacity over what is considered normal decreases intrapulmonary pressure to about -20 mmHg or lower

15

These contract in forced (exhalation) breathing and have this affect

internal intercostals
external abdominal oblique
internal abdominal oblique
transversus abdominis
rectus abdominis
force air out of the lungs, increasing intrapulmonary pressure to +30 mmHg or higher

16

Review the mechanics of breathign

20:30 podcast

17

What happens during normal expiration

relaxation of the diaphragm and external intercostals, plus elastic recoil of lungs, decreases lung volume and increases intrapulmonary pressure to about +3mmHg

18

name of the equipment used to determine lung volume, and how it works

Transducermeasures/compares pressures on both sides of the diaphragm to calculate lung volume

19

Use this when doing the lung volume test to reduce pathogens

biofilter

20

Emphysema

progressive condition in which alveolar tissue is destroyed resulting in fewer but larger alveoli

21

emphysema results in this

decrease in surface area for gas exchange

22

asthma

an obstruction of airflow through the bronchioles occuring in episodes.

23

What is the obstruction caused by in asthma

inflammation of airway mucosa and bronchoconstriction (conduction zones)

24

Three experiments of this lab

recording respiratory movements
measuring respiratory volume
measuring pulmonary function

25

What is pleural mesotheliuma

rare form of cancer involving tumor formation on the pleura

26

What is the pleura

thin membrane of the mesothelial cells that lines the chest cavity and protects the lungs

27

Causes of pleural mesotheliuma

exposure to asbestos

28

This percent of people with pleural mesotheliuma have been exposed to asbestos

70-80%

29

What happens after exposure to asbestos

inhaled asbestos fibers attach to the pleural membrane

trapped fibers irritate the pleura causing chronic inflammation and scarring

This eventually causes genetic changes in cells leading to cancer

30

It may take this long for symptoms of pleural mesotheliuma to manifest

20-50 years