Respiratory Delmar powerpoint Flashcards
Respiratory system
the body system that brings oxygen from the air into the body for delivery via the blood to the cells
Respiration
is the exchange of gases (oxygen and carbon dioxide) between the atmosphere and the body cells
Ventilation
the bringing in of fresh air
–Ventilation is also known as breathing
The upper respiratory tract consists of
the nose, mouth, pharynx, epiglottis, and larynx
The lower respiratory tract consists of
the trachea, bronchial tree, and lungs
The combining forms for nose
nas/o and rhin/o
Nares
External openings of the nose area
Pharynx
the area from the back of the nasal cavity and the mouth to the larynx
- Aka throat
Combining form for pharynx
pharyng/o
Larynx
the area between the pharynx and the trachea
- aka the voice box
Combining form for larynx
laryng/o
Windpipe
extends from the neck to the chest and passes air from the larynx to the thoracic cavity
- aka trachea
- contains C-shaped cartilaginous rings
The trachea divides into two branches at the tracheal bifurcation to form
bronchi
–bronch/o is the combining form for bronchi
–Bronchus is the singular form of bronchi
The bronchi continue to get smaller in diameter until they become
bronchioles
–bronchiol/o is the combining form for bronchioles
–-ole means small
Alveoli
air sacs where gas exchange occurs
