respiratory system anatomy Flashcards
what are the two zones of the respiratory system
conducting and respiratory zones
the basic function of conducting zone
deliver O2 to respiratory zone and remove CO2
the basic function of the respiratory zone
gas exchange
what type of epithelium is found in the nasal cavity and function
ciliated pseudostratified columnar - produces mucus, remove debris
what type of epithelium is found in the pharynx and function
stratified squamous - protection against abrasion and chemical attack
what type of epithelium is found in the larynx and function
ciliated pseudostratified columnar - produces mucus and remove debris
what type of epithelium is found in the alveoli and function
simple squamous - provides thing layer for gas exchange
types of cells present in the respiratory membrane and function
type 1 - air diffusion
type 2 - secretes surfactant to release surface tension, promoting diffusion
macrophages - keep surface sterile
how many lobes are in each lung
right is 3, left is two
how are lobes divided
fissures
what is the pleura
the membrane surrounding the lung
name two types of pleura and function
visceral pleura - superficial to lung, covering its external surface
parietal surface - outer pleura
where is the pleura cavity and what fills it
between pleura
filled by lubricant
where do both pleura attach
the hilum
name the two types of vessel systems for lungs and function
bronchial system - supply and waste removal of lung tissue
pulmonary system - arteries carry deoxygenated blood to lungs and vein returns oxygenated blood to the heart for redistribution
