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Flashcards in Respiratory System Deck (181)
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Three steps of respiration

Ventilation
External respiration
Internal respiration.

2

Pulmonary Ventilation

Breathing.

Atmosphere lungs

3

External respiration

Pulmonary respiration

Lungs blood

3

Respiratory system consists of:

Nose
Pharynx (throat)
Larynx (voice box)
Trachea (windpipe)
Bronchi
Lungs

4

Internal respiration

Tissue respiration

Blood tissues

5

Structural division of respiratory system:

Upper and lower respiratory tract

6

Upper respiratory tract

Structural classification.

Above vocal cords.
Nose, nasal cavity, pharynx, and associated structures.

7

Lower respiratory tract

Structural classification.

Below vocal cords.
Larynx, trachea, bronchi and lungs

8

Functional divisions of respiratory system.

Conducting and respiratory portion.

9

Conducting system

Functional classification of respiratory system.

Moves air.

Cavities and tubes: nose, pharynx, larynx, trachea, bronchi, bronchioles, terminal bronchioles

10

Respiratory System

Functional classification of respiratory system.

Where has exchange occurs.
Respiratory bronchioles, alveolar ducts, alveolar sacs, alveoli.

11

External nares

Opening to the exterior

12

Bony framework of the nose

Frontal bone
Nasal bone
Maxilla.

13

Cartilaginous framework of the nose

Septal nasal cartilage
Lateral nasal cartilage
Alar cartilage

14

Extern portion of the nose is lined with

Mucous membrane

15

Nasal septum

Cartilage and bone
Divides nasal cavity into left and right

16

Lateral walls of the nasal canal are formed by:

Ethmoid
Maxilla
Lacrimal
Palatine
Inferior nasal conchae

17

What bone forms the roof of the nasal cavity?

Ethmoid

18

The floor of the nasal canal is formed by:

Hard palate (palatine bone and processes)

19

Nasal cavity is lined with

Muscle and mucous membrane

20

Internal nares

Where nasal cavity and nasopharyngeal meet

21

Nasal vestibule

Anterior nasal cavity, just inside nostrils.
(Hairy -- filters dust)

22

Nasal cavity is divided into what two regions:

Respiratory and olfactory

23

Respiratory region of nasal cavity

Larger, inferior.
Lined with pseudostratified columnar epithelium with many goblet cells.

24

Olfactory region of nasal cavity

Smaller. Superior.

Olfactory receptors near superior nasal conchae.
Contain cilia but no goblet cells.

25

Paranasal sinuses

Frontal
Sphenoid
Maxillary
Ethmoidal

26

Where do the paranasal sinuses and lacrimal ducts open into?

Nasal cavity

27

Nasal polyps

Outgrowths of mucous membranes
Usual by openings of paranasal sinuses

28

Function of paranasal sinuses and lacrimal ducts

Mucous production and resonating sound

29

Nasal conchae

Shelf like projections that extend from lateral wall of nasal cavity.

Lined with mucous membranes

With meatuses warm air, trap H2O on exhalation