Development of the Human Lung
Learning Objectives:
Phases of Lung Development
Slide 4
Slide 5
Slide 6
Slide 7
Derivation of lung elements
Slide 9
"The pseudoglandular stage
takes place..."
Slide 11
"For branching to
occur,"
"Cilia appear in the
proximal..."
"Mesenchyme is
necessary for epithelial..."
Canalicular Period 16-26 wk
Terminal Sac Period 26 wk →
"By 20 weeks,"
Primitive Saccule
Postnatal stage
Slide 20
Characteristics of Mature
Alveolus
Slide 22
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Slide 24
Development of Pulmonary
Arterial Muscle
Control of Pulmonary Blood
Flow
Hypoxic Pulmonary
Vasoconstriction
Physical Influences on Lung
Growth
Slide 29
Physical Influences on Lung
Growth
Physical Influences on Lung
Growth
Slide 32
Slide 33
Slide 34
Slide 35
Hormonal Influence on the
Lung
Hormonal Influence on the
Lung
Slide 38
Slide 39
The Problem of Prematurity
Slide 41
Slide 42
Slide 43
Neonatal Respiratory
Failure
The lung is ignored only at
your own peril!
DON’T HOLD YOUR BREATH!