1. The Respiratory System Chapter 7
Key terms

2. Sinus/o Having to do with the sinus Sinus
Air-filled cavity within a bone that is lined with mucous membrane that makes mucus
Functions of the sinuses
Make the bones of the skull lighter
Help produce sound by giving resonance to the voice
To produce mucus that drains into the nasal cavity

4. Nas/o
Having to do with the nose

5. Pharyng/o Throat Pharynx Carries both food and air 3 divisions
Nasopharynx
Oropharynx
Laryngopharynx

6. Laryng/o Voice box Larynx
Triangular chamber located between the pharynx and the trachea
Contains the vocal cords
Protected and held open by a series of nine separate cartilages. The thyroid cartilage is the largest and it prominent projection is commonly known as the Adam’s apple.

8. Epiglott/o Having to do with the epiglottis Epiglottis
A leaf shaped lid like structure
Located at the base of the tongue
Swing downward and closes off the laryngopharynx so food does not enter the trachea and the lungs.

9. Anatomy of the upper airway.

10. Trache/o Having to do with the trachea Trachea
Commonly known as the windpipe
Extends from the neck into the chest
Directly anterior to the esophagus
Held open by a series of C-shaped cartilage rings

12. Bronch/o, bronchi/o Having to do with the bronchial tube Or bronchus
The trachea divides into two branches called bronchi. One branch goes into each lung.
Within each lung the bronchus divides and subdivides into increasingly smaller bronchi
Bronchioles are the smallest branches of the bronchi
Bronchial tree
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14. Alveol/o Having to do with the alveoli Alveoli Air sacs
Very small grapelike clusters found at the end of each bronchiole
Surrounded by a network of microscopic pulmonary capillaries
Gas exchange occurs through the very thin walls of the alveoli

16. Pleur/o Having to do with the pleura Pleura
Multilayered membrane that surrounds each lung with its blood vessels and nerves
Plural is pleurae
Parietal pleura – outer layer. Lines the thoracic cavity
Visceral pleura – inner layer. Surrounds the lungs
Pleural space or pleural cavity – airtight space between the folds of the pleural membranes that has a watery lubricating fluid in between the pleural membranes

17. Cyan/o
Blue
Cyanosis – a bluish discoloration of the skin caused by a lack of adequate oxygen

18. Atel/o
Incomplete
Imperfect

19. -ectasis Stretching Atelectasis Collapsed lung
Condition in which the lung fails to expand because air cannot pass beyond the bronchioles that are b locked by secretions

20. Thorac/o, -thorax
Having to do with the thorax
Or chest

21. -pnea Breathing Usually has to do with breathing patterns Tachypnea
Bradypnea
Apnea

22. Pneum/o, pneumon/o, pneu-
Lung
Air

23. Pulm/o, pulmon/o
Also means lung

24. Phon/o
Having to do with sound
Or voice

25. Ox/i, ox/o, ox/y
Having to do with oxygen

26. Mucus Secretion that flows from the nose
Helps to warm, moisten, and filter air as it enters the nose
Mucous is the name of the tissue
Mucus is the secretion that flows from the tissue

27. Mediastinum Also known as the interpleural space
Located between the lungs
Contains the thoracic viscera including the heart, aorta, esophagus, trachea, bronchial tubes, and thymus gland