Card Set Information
basics of respiratory system
the respiratory system consists of passages that
filter incoming air and transport it into the lungs and to the many microscopic air sacs where gases are exchanged.
respiration is the process of
exchanging gases between the atmosphere and body cells
respiration consists of
ventilation, external respiration, transport of gases, internal respiration, cellular respiration.
gas exchange, oxygen, and carbon dioxide, occure at the
cellular and molecular levels.
Aerobic reactions of cellular respiration allow for
ATP production, carbon dioxidegeneration forming carbonic acid 36 ATP
Upper respiratory tract consists of
nose, nasal cavity, sinuses, pharynx
lower respiratory tract
Larynx, trachea, bronchial tree, lungs.
the nasal conchae
support the mucous membrane that lines the nasal cavity and help increase it surface area.
sinuses air filled spaces in the
frontal, sphenoid, ethmoid , and maxillary bones of the skull.
the pharynx is
posterior to the oral cavity and between the nasal cavity and the larynx.
three parts of the pharynx are
nasopharynx, oropharynx, laryngopharynx
the larynx if an enlargement in the airway
superior to the trachea and inferior to the pharynx. it is composed of a framework of muscles and cartilages bound by elastic tissue. It also houses the vocal cords.
the Trachea windpipe is a flexible cylindrical tube
it extends downward anterior to the esophagus and into the thoracic cavity it splits into right and left primary bronchi.
Carina is the split between
the right and left main bronchi
provides surface area for gas exchange.
Right lung has
Left lung has