Lungs

Question 1

parts of the parietal pleura

Answer 1

Costal part
– Diaphragmatic part
– Mediastinal part
– Cervical pleura

Question 2

where does the mediastinal pleura reflect off mediastinum

Answer 2

TV to TVII
sleeve like
covering forming root of the
lung

Question 3

root of lung join

Answer 3

hilum of the lung

mediastinal pleura continuous with visceral pleura

Question 4

pleural recesses anterioraly of ribs

Answer 4

8th rib anteriorly
Midclavicular line
6th rib anteriorly
Midclavicular line

Question 5

function of thoracic cavity

Answer 5

keep thoracic pressure on the negative side

Question 6

pleural recesses laterally of ribs

Answer 6

10th rib laterally- Midaxillary line

8th rib laterally- Midaxillary line

Question 7

pleural recesses posteriorly of ribs

Answer 7

12th rib/TXII posteriorly

10th rib/TX posteriorly

Question 8

pneumothorax

Answer 8

lungs collapse and cannot inflate

Question 9

location of oblique fissure and function

Answer 9

transverse line on thoracic 4

separate lower lobe and upper lobe

Question 10

location of horizontal fissure

Answer 10

only in right lung

from 4th costal cartilage to 6th costal cartilage

Question 11

root of the lung

Answer 11

back of the lungs that shows the pulmonary veins, pulmonary arteries, bronchus etc

Question 12

bronchopulmonary segment

Answer 12

Area of lung supplied by a segmental bronchus
& branch of pulmonary artery
lungs are divided by lobes - lobes subdivided by BP segments
• Share tributaries of pulmonary vein & lymphatics

Question 13

when will bronchopulmonary segment collapse

Answer 13

cystic fibrosis

Question 14

each BP segment has

Answer 14

Has its own bronchus
Has its own segmental artery
Pulmonary veins run between segments

Question 15

bronchi further divide into

Answer 15

bronchioles

Question 16

main bronchus turn to

Answer 16

lobar branches

Question 17

difference in bronchi and bronchioles

Answer 17

– Bronchi have cartilage in walls

– Bronchioli do not

Question 18

2 sets of vessels in lungs

Answer 18

pulmonary and bronchioles

Question 19

pulmonary arteries

Answer 19

Supply the alveoli with deoxygenated

blood

Question 20

pulmonary veins

Answer 20

Two pulmonary veins exit each lung

Carry oxygenated blood to the heart

Question 21

bronchial arteries

Answer 21

Supply most of bronchial tree & visceral pleura

Question 22

bronchial veins

Answer 22

Drain most of bronchial tree & visceral pleura

Question 23

nerve supply of lungs from what plexus

Answer 23

autonomic sympathetic and parasympathetic

from cardiac plexus to form pulmonary plexus at hilum

Question 24

parasympathetic nerve supply of lungs

Answer 24

Vagus nerve

Question 25

function of vagus nerve -parasympathetic

Answer 25

Bronchoconstriction
Smooth muscle in walls of conducting pathways
Vasodilation
Cough reflex

Question 26

function of SNS on lungs

Answer 26

Bronchodilation
Vasoconstriction
(NB – medications)

Question 27

normal volume changes in expiration

Answer 27

– Passive
– Intercostal muscles relax & ribcage falls
– Diaphragm recoils & elevates

Question 28

forced volume changes of expiration

Answer 28

Active
– Internal intercostals contract
– Abdominal wall muscles contract:
elevates diaphragm