Respiratory System pt 1 Flashcards
What are the 2 systems that cooperate to supply oxygen and eliminate carbon dioxide
cardiovascular system and respiratory system
The cardiovascular system is responsible for
transports respiratory gases
The respiratory system is responsible for
gas exchange
exchange of gases between atmospheric, blood, and cells
respiration
3 basic processes of respiration
ventilation (breathing), external (pulmonary) respiration, internal (tissue) respiration
upper respiratory system
nose, pharynx, associated structures
lower respiratory system
larynx, trachea, bronchi, lungs
system that consists of a series of cavities and tubes that conduct air into the lungs
conducting system
system that consists of the area where gas exchange occurs
respiratory system
external portion of the nose is made up of
cartilage and skin and lined with mucous membrane
bony framework of the nose is formed by
frontal bone, nasal bones, and maxillae
inferior structures of the nose are specialized for
warming, moistening, and filtering incoming air; receiving olfactory stimuli; and serving as large, hollow resonating chambers to modify speech sounds
What is the pharynx?
aka the throat; a muscular tube that is lined by mucous membrane; resonating chamber + houses the tonsils
3 regions of the pharynx
nasopharynx, oropharynx, and laryngopharynx
Functions of the 3 regions of the pharynx
nasopharynx - respiration
oropharynx and laryngopharynx - digestion and respiration
What is the larynx?
voicebox; passageway that connects the pharynx with the trachea
Where does sound originate from?
from the vibration of the vocal folds
What is the trachea?
windpipe; anterior to esophagus; extends from larynx to primary bronchi
What is the trachea composed of?
smooth muscle and c-shaped rings of cartilage and is lined with pseudostratified cilitated columnar epithelium
function of the cartilage rings of the trachea
keeps airway open
function of the cilia of the trachea
function of the epithelium sweep debris away from the lungs and back to the throat to be swallowed
What does the bronchial tree consist of
trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, and terminal bronchioles
What are the lungs
paired organs in thoracic cavity
what surrounds and protects the lungs
the pleural membrane
