RESPIRATORY SYSTEM LAB Flashcards
what are the organs of the respiratory system?
Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs – alveoli
what are the functions of the respiratory system?
Oversees gas exchanges between the blood and external
environment
Exchange of gases takes place within the lungs in the
alveoli
Passageways to the lungs purify, warm, and humidify the
incoming air
it is the only externally visible part of the respiratory system
nose
the air enters the nose through the external nares called?
nostrils
The interior of the nose consists of a nasal cavity divided by a _____?
nasal septum
Is the open chamber inside the nose where air first enters the respiratory system.
nasal cavity
where does the nasal cavities begins?
at the nares or nostrils
It extends to posterior openings into the pharynx. These openings are called ______.
choanae
where does olfactory receptor located??
in the mucosa on the superior surface
structure of the alveoli
Alveolar duct
Alveolar sac
Alveolus
it takes place within the alveoli in the
respiratory membrane
gas exchange
site of gas exchange?
respiratory zone
structures of respiratory zone
Respiratory bronchioles
Alveolar duct
Alveoli
Smallest branches of the bronchi.
all but the smallest branches have reinforcing cartilage
bronchioles
respiratory tree divisions
Primary bronchi
Secondary bronchi
Tertiary bronchi
Bronchioles
each lung is divided into lobes by
fissures
Occupy most of the thoracic cavity, except for the central area (mediastinum)
lungs
how many lobes that the left lung has?
two lobes
how many lobes that the right lung have?
three lobes
It is formed by division of the trachea
bronchi
Commonly known as the “windpipe” and connects larynx with bronchi
trachea
what do you call to the walls that reinforced with C-shaped hyaline cartilage?
tracheal rings
opening between vocal cords
glottis
Superior opening of the larynx
Routes food to the larynx and air toward the trachea
epiglottis
are the superior pair of ligaments
Vestibular folds (false vocal cords)
are the inferior ligaments.
vibrate with expelled air. This ability of the vocal folds to vibrate allows us to speak
Vocal folds (true vocal cords)
Commonly known as the “voice box”
larynx
Houses the ligaments used for speech as well as for swallowing and other functions
larynx
Largest hyaline cartilage
Protrudes anteriorly (Adam’s apple)
thyroid cartilage
Made of eight rigid hyaline cartilages and a spoon-shaped flap of elastic cartilage (epiglottis)
larynx
superior region behind nasal cavity
nasopharynx
middle region behind mouth
oropharynx
inferior region attached to larynx
laryngopharynx
The nasal cavity is separated from the oral cavity by the _____
palate
common passageways for air and food
oropharynx and laryngopharynx
