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Flashcards in Respiratory System Deck (105)
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1

Is the functional unit of respiratory system.

ALVEOLI

2

Respiratory rate

16-25 breaths per minute

3

Organ lined with simple COUMNAR and covered with Pleural Cavity.

Lungs

4

Lungs are ___ to the heart.

LATERAL

5

Heart is lined with what cavity?

Mediastinal cavity

6

2 cavities covered by Thoracic cavity

Mediastinal and Pleural Cavity

7

Lung with Larger lobe having oblique and horizontal fissures

Right lung

8

Lung with smaller lobe having oblique fissure only

Left lung

9

What is the additional lobe in the right lung?

Middle lobe

10

What is the additional fissure in right lung?

Horizontal fissure

11

A wedge-shaped located on the medial aspect of the lungs.

Hilum

12

Hilum basically means?

Gateway of an organ

13

Structures that passes through the hilum of the lungs

Bronchi
Pulmonary artery and vein
hilar lymph nodes

14

It is an indentation that allows space for the heart.

Cardiac notch

15

It is the tongue-like depression located on the LEFT lung.

Lingula

16

Lobe where the cardiac notch is located

Superior lobe of the left lung

17

Lingula is found in what lobe?

Superior lobe of the left lung

18

The main muscle for respiration

Diaphragm

19

Between what cavity diaphragm is located?

Below the thoracic cavity and above the peritoneal cavity

20

Phrenic refers to

Diaphragm

21

Blood supply for the diaphragm

Musculophrenic artery

22

Nerve innervation of the diaphragm

Phrenic nerve

23

Structures that passes through Caval opening of the diaphragm

Inferior vena cava
Right phrenic nerve

24

Structures that passes through Esophageal opening of the diaphragm

Esophagus
R and L vagus nerve
Left gastric vessel

25

Structures that passes through Aortic opening of the diaphragm

Aorta
Azygus vein
Thoracic duct

26

In what direction diaphragm is displaced during inspiration?

INFERIORLY

27

Action of diaphragm during expiration

Recoils

28

Vein that runs at the side of the THORACIC vertebra towards the superior vena cava that provides an alternative path for blood to the RIGHT ATRIUM when superior and inferior vena cava are BLOCKED

Azygos vein

29

True or False. Contraction of diaphragm initiates expiration.

False- inspiration

30

True or false. During EXPIRATION, it does not require any muscle due to ELASTIC RECOIL

True