Unit 5 Lungs & Pleura

Question 1

Pleura Cavities

Answer 1

• Left & right
• Contain lungs & pleura
• Mediastinum in middle

Question 2

Hilum

Answer 2

• Transition zone
• Opening of pleura
• Middle mediastinum & pleura

Question 3

Hilum Function

Answer 3

• Passage of pulmonary vessels & veins, primary bronchi & bronchial arteries

Question 4

Gas Exchange Area Composition

Answer 4

• Single cell of alveoli
• Single cell of capillary

Question 5

Interalveolar Septum

Answer 5

• Space between two alveolar cells
• Contains pulmonary capillaries

Question 6

Interstitum Composition

Answer 6

• Fibroblasts
• Macrophages

Question 7

Fibroblasts

Answer 7

• Compose elastic tissue of lungs

Question 8

Macrophages

Answer 8

• Part of immune system
• Provide protection

Question 9

Lung Lobes

Answer 9

• Three right
• Two left

Question 10

Lung Surfaces

Answer 10

• Costal (against ribs)
• Diaphragmatic (against diaphragm)
• Mediastinal (against mediastinum)

Question 11

Lung Tip

Answer 11

• Apex

Question 12

Lung Root

Answer 12

• Mediastinal surface

Question 13

Lobe Division

Answer 13

• Fissures

Question 14

Bronchial Circulation

Answer 14

• Supply lung muscle

Question 15

Right Lung Fissures

Answer 15

• Oblique (angled)
• Horizontal

Question 16

Right Lung Lobes

Answer 16

• Superior
• Middle
• Inferior

Question 17

Left Lung Fissure

Answer 17

• Oblique (angled)

Question 18

Left Lung Lobes

Answer 18

• Superior
• Inferior

Question 19

Lingula

Answer 19

• Left lung ONLY
• Piece of superior lobe
• Wraps around front of heart

Question 20

Hilum Structure

Answer 20

• Bronchi
• Pulmonary arteries
• Pulmonary veins
• Lymphatics
• Bronchial arteries
• Pulmonary ligament

Question 21

Bronchi

Answer 21

• Carry air
• Cartilaginous rings surrounding lumen

Question 22

Pulmonary Arteries

Answer 22

• Carry deoxygenated blood
• Superior position

Question 23

Pulmonary Veins

Answer 23

• Carry oxygenated blood to heart
• Inferior position

Question 24

Lymphatics

Answer 24

• Lymphatic drainage

Question 25

Bronchial Arteries

Answer 25

- Supply lung tissue - Form of systemic circulation

Question 26

Pulmonary Ligaments

Answer 26

- Double layer of pleura

Question 27

Pleura

Answer 27

- Two layered sacs - Surround lungs

Question 28

Visceral Pleura

Answer 28

- Layer adhered to lungs

Question 29

Parietal Pleura

Answer 29

- Layer next to thoracic wall

Question 30

Pleura Boarders

Answer 30

- Costal - Diaphragmatic - Mediastinal - Cervical

Question 31

Lungs within Pleura

Answer 31

- Don't fill entire space, gap at bottom - Gap between parietal & visceral pleura - Maintain pressure difference

Question 32

Pleura Recesses

Answer 32

- Costomediastinal - Costodiaphragmatic

Question 33

Recesses Purpose

Answer 33

- Fluid collecting areas - Pleural effusion