HISTOLOGY (Respiratory System) Flashcards
(51 cards)
allows one to obtain oxygen, eliminate carbon dioxide
Respiratory System
Breathing consists of two phases
Inspiration and Expiration
the process of taking in air
INSPIRATION
the process of blowing out air
EXPIRATION
Air moves in and out of lungs
Pulmonary Ventilation
Gas exchange between blood and air at alveoli
External Respiration
Between the lungs and the cells of the body
Transport of Respiratory Gases
Gas exchange in capillaries between blood and tissue cells
Internal Respiration
nasal cavities, pharynx
the section that takes air in and lets it out
Upper Respiratory Tract
larynx, trachea and lungs
Lower Respiratory Tract
Two Division of Respiratory Act
Upper Respiratory Tract and Lower Respiratory Tract
WARMS, MOISTENS, & FILTERS
AIR AS IT IS INHALED
nose
PASSAGEWAY FOR AIR, LEADS TO
TRACHEA
pharynx
THE VOICE BOX, WHERE VOCAL
CORDS ARE LOCATED
larynx
KEEPS THE WINDPIPE “OPEN”
trachea
TWO BRANCHES AT THE END OF
THE TRACHEA, EACH LEAD TO A
LUNG
bronchi
A NETWORK OF SMALLER BRANCHES LEADING FROM THE BRONCHI INTO THE LUNG TISSUE & ULTIMATELY TO AIR SACS
bronchioles
THE FUNCTIONAL RESPIRATORY
UNITS IN THE LUNG WHERE GASES
ARE EXCHANGED
alveoli
Two (2) components of
respiratory
- CONDUCTING PORTION
- RESPIRATORY PORTION
main function of gas exchange
- RESPIRATORY PORTION
cleans and humidifies the inspired
air and provides a conduit through
which air moves to and from the
lungs
CONDUCTING PORTION
which create turbulence in inspired
air
VESTIBULES
partway into the vestibules and
has sweat glands and coarse moist
vibrissae.
NARES (NOSTRILS)
filter some material from inspirde
air.
VIBRISSAE
