Prelim | Lungs

Question 1

Weight of the lungs

Answer 1

1000g

Question 2

Volume of the lungs

Answer 2

250ml (birth) to 6000ml

Question 3

Height of the lungs

Answer 3

24-27cm

Question 4

Shape of the lungs

Answer 4

Cone-shaped

Question 5

Location of the lung’s apex

Answer 5

Superior to medial thirds of clavicle

Question 6

What surfaces of the lunds lie against the ribs?

Answer 6

Anterior lateral, and posterior surfaces

Question 7

Location of the lung’s base:
Extends from the (1) anteriorly to the process of the (2) posteriorly

Answer 7

1. 6th costal cartilage
2. 10th thoracic vertebrae

Question 8

Composition of the lungs

Answer 8

1. Enclosed by pleural membrane
2. Bronchial tree
3. Elastic and collagen fibers
4. Capillaries
5. Alveoli

Question 9

Function of the lungs

Answer 9

Respiration

Question 10

Double-layered serous membrance that enclose and protects the lungs

Answer 10

Pleural membrane/ Pleura

Question 11

Layers of the pleura

Answer 11

Visceral plura and parietal pleura

Question 12

Space between the visceral and parietal pleura

Answer 12

Pleural cavity

Question 13

Fluid within the pleural cavity and its function

Answer 13

Parietal fluid; reduces frinction during breathing

Question 14

Pleural cavities filled with air

Answer 14

Pneumothorax

Question 15

Pleural cavities filles with blood

Answer 15

Hemothorax

Question 16

Pockets of pus that have collected inside a body cavity

Answer 16

Empyema

Question 17

Lung surfaces

Answer 17

Costal surface
Mediastinal surface
Cardiac notch
Diaphragmatic surface

Question 18

Rounded curvature that matches and lies aaginst he ribs

Answer 18

Costal surface

Question 19

Central part between the two lungs that contains a region through which bronchi, pulmonary blood vessels, lymphatic vessels, and nerves enter and exit

Answer 19

Mediastinal surface

Question 20

Region through which bronchi, pulmonary blood vessels, lymphatic vessels, and nerves enter and exit

Answer 20

Hilum

Question 21

Concavity in the left lung where apex of the heart lies

Answer 21

Cardiac notch

Question 22

Surface resting on the dome of the diaphragm having a concave shape

Answer 22

Diaphragmatic surface

Question 23

Lung borders

Answer 23

Anterior
Posterior
Inferior

Question 24

Formed by the sharp convergence of the mediastinal and costal surfaces on the L lung

Answer 24

Anterior border (of lung)

Question 25

What border of the lungs is marked by the cardiac notch?

Answer 25

Anterior border

Question 26

Smooth and rounded border of the lung

Answer 26

Posterior border

Question 27

Formed by the costal and mediastinal surfaces meeting posteriorly

Answer 27

Posterior border (of lung)

Question 28

Separates the base of the lung from the costal and mediastinal surfaces

Answer 28

Inferior border (of lung)

Question 29

Cup-shaped outpouching

Answer 29

alveoli

Question 30

Passageway connecting alveolar sac and bronchioles

Answer 30

Alveolar ducts

Question 31

Consists of 2 or more alveoli that share a common opening

Answer 31

Alveolar sac

Question 32

Four layers of the respiratory membrane (where exchange of O2 and CO2 happens)

Answer 32

1. Type I and II alveolar cells 2. Epithelial basement membrane 3. Capillary basement membrane 4, Capillary endothelium