Thoravic cavity Flashcards
refers to the central area of the thoracic cavity that contains the trachea, bronchi, esophagus, heart, and great vessels
mediastinum
flexible structure that lies anterior to the esophagus, approximately 10-12 cm long in an adult
trachea
c shaped rings that composed the trachea
hyaline cartilage
help to maintain the shape of the trachea and prevent its collapes during respiration
hyaline cartilage
represents “dead space” in the respiratory system, where air is transported but no gas exchange takes place
bronchi and trachea
they function primarily as a passage way for both inspired and expired air
bronchi and trachea
the trachea and bronchi are lined with mucous membrane containing ___
cilia
they help sweet dust, foreign bodies and bacteria that have been trapped by the mucous toward the mouth for removal
cilia
the bronchi repeatedly bifurcate into smalle passageways known as
bronchioles
even actually the bronchioles terminate at the alveolar ducts and air is channeled into the alveolar sacs , which contain the
alveoli
contain a number of alveoli in a cluster formation, creating a millions of inter-alveolar walls that increase the surface area available for tas exchange
alveolar sacs
two cone-shaped, elastic structures suspended within the thoracic cavity
lungs
each lungs extends slightly above the clavicle
apex
although the lungs are paired, they are not completely symmetric, both are divided into lobes by fissures. the right lung is made up of ____ lobes; the left lung contains only ____ lobes
right lung= three lobes
left lung= two lobes
is lined by a thin, double-layered serous membrane referred to ss the pleura
thoracic cavity
