Respiratory System Flashcards
Primary function of the respiratory system
gas exchange
secondary functions of the respiratory system
heat elimination
water elimination
acid-base balance
assists circulation
vocalization
defense
smell and taste
principle portions of the respiratory tract
nose/nasal cavity
pharynx
larynx
trachea
bronchial tree
lungs
the nose consists of a FRAMEWORK OF
CARTILAGE AND BONE covered externally by the SKIN and internally by a MUCOUS MEMBRANE
the nasal cavity is divided by
THE NASAL SEPTUM
EXTERNAL NARES
lead into the nasal cavity from the nose
INTERNAL NARES
lead into the nasopharynx
the lateral walls of the nasal cavity consists of “flaps” of bone covered with a mucous membrane called the
superior, middle, and inferior CONCHAE
under the conchae are
passages knowns as MEATUSES
as air is inhaled, it swirls under the conchae. this allows time for
MOISTURIZATION of air by mucus
and
WARMING by the blood in the capillaries just deep to the mucus membrane
air-filled spaces that surround and communicate with the nasal cavity
paranasal sinuses
function of sinuses
make SKULL LIGHTER
serve as RESONATING CHAMBERS for sounds that we produce
roles of the nose/nasal cavity and sinuses in the respiratory system
AIR PASSAGEWAY
WARMS, MOISTURIZES AND FILTERS
DEFENSE
sense of SMELL AND TASTE
VOCALIZATION
walls of the pharynx consist of
SKELETAL MUSCLE LINED WITH MUCOUS MEMBRANE
THREE PORTIONS of the pharynx
NASOPHARYNX
OROPHARYNX
LARYNGOPHARYNX
the pharynx is a common passage way for both
RESPIRATORY AND DIGESTIVE SYSTEMS
What structures open to or are found in the pharynx?
EUSTACHIAN TUBES (nasopharynx)
PHARYNGEAL TONISL (nasopharynx)
PALATINE AND LINGUAL TONSILS (oropharynx)
functions the pharynx serves in the respiratory system?
AIR PASSAGEWAY
FOOD PASSAGEWAY
VOCALIZATION
DEFENSE
the larynx is also known as
the voice box
the larynx is lined with a mucous membrane with nine….including the
CARTILAGES EMBEDDED IN ITS WALLS
EPIGLOTTIS
which cartilage is felt as the Adam’s apple?
the THYROID CARTILAGE
The larynx elevates up against the ____, which acts as a trap door to close off the lower respiratory tract at the larynx to prevent solids and liquids from entering
EPIGLOTTIS
the true and false vocal cords are located in the
larynx
what functions does the larynx serve?
air passageway
vocalization
defense
the trachea is also known as
the wind pipe
the trachea is located
ANTERIOR TO THE ESOPHAGUS