Bronchi, pleura, lungs and diaphragm Flashcards Preview

anatomy of the thorax > Bronchi, pleura, lungs and diaphragm > Flashcards

Flashcards in Bronchi, pleura, lungs and diaphragm Deck (66)
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1

what are the 4 components of the bronchial tree

trachea
primary bronchi - R and L
Lobar (secondary) bronchi
segmental (tertiary) bronchi

2

describe the trachea

central
from C6 to T4/5 manubriosternal joint
C shaped rings of cartilage (so oesophagus can expand)
lowest ring has hook called carina - hooks under bifurcation of the trachea

3

what does the sternal notch relate to anatomically

2nd costal cartilage
T4/5 posteriorally

4

what can change the appearance of the subcarinal angle

flow to the subcarinal lymph nodes

5

describe the primary bronchi

formed at T4/5
right is wider and more vertical than left

6

significance of R primary bronchi being thicker

solid objects are more likely to move down the right when swallowed

7

describe the lobar bronchi

formed in the lung s
supply the lobes of the lungs

8

describe the arrangement of lobes in the lung

3 in R (more lobar bronchi)
2 in L

9

what do the segmental bronchi do

supply individual bronchopulmonary segments - self contained independent units of lung tissue

10

what is the thyroid cartilage seen as

Adam's apple

11

what is a cricothyroidotomy

make an incision in cricothyroid membrane to open airways in trauma

12

what joins the cricoid cartilage and thyroid cartilage

median cricothyroid ligament

13

at what point is a tracheostomy done

in hospital

14

number of bronchiopulmonary segments in each lung

10

15

what is the term for the branches coming off another branch

airway tree - supply a specific segment of the lungs

16

are the bronchopulmonary segments related

no - functionally different
can remove 1 without moving any of the others - have own nerve and blood supply and own airways

17

what are the lungs

essential organs for respiration

18

where are the lungs

thorax
separated from each other by mediastinum
lie in pleural cavity freely - except from attachment to heart (via pul vessels and trachea at the lung root/hilum . therefore has mobility in pleural cavity

19

which way does blood flow on the pulmonary circulation

from heart to the lung

20

which way does deoxygenated blood flow in bronchial circulation

away from the lungs (oxygen used by the lungs to function)

21

describe the structure of the lungs

conical
apex - thoracic inlet oblique, rises 3- 4cm above 1st costal cartilage
base is concave because diaphragm rises up and it rests on the convex wall
the 3 edges - anterior, posterior, interior
3 surfaces - costal, medial, inferior

22

what does the diaphragm separate

R lung from R lobe of liver
L lung from l lobe of liver, stomach and spleen

23

where is the liver

under the rib cage because the diaphragm is curved superiorly

24

what is the function of the pleural cavity

has fluid
provides surface tension - allow sliding of tissue
if surface tension breaks inner layer doesn't move with outer layer

25

3 features of the mediastinal surface of the lung

posterior
anterior
above and behind the cardiac impression - hilum of the lung

26

describe the posterior part of lung

contact with the vertebrae
thick

27

describe the anterior part of the lung

deeply concave - where heart is, bigger on L

28

describe the hilum of the lung

where vessels, bronchi and nerves leave and enter the mediastinum

29

what is the pleural reflection

change from parietal pleura to visceral pleura
this is the lung hilum
(the root is the structures in this)

30

describe the medial/mediastinal aspect of the heart

indentation for major muscles
tubes point towards the middle
small vein that brings blood back to other veins
left lung has lingula - 'hand' in front of the heart