respiratory system cells

how many cilia per cells

300

how many cycles do cilia beat per second

14

how far can cilia propel mucus

2cm/ min

what do mucuous goblet cells do

seceret mucus to trap stuff

what are brush cells

columnar cell, short blunt microvilli on apical surface, sensory receptor cell?

basal(short cell)

stem cell function,base of epithelium and replace damaged cells

kulchitsky cells ( small granule)

contain granules at base of cell. neuroendocrine function

club/clara cells found where

distal elements of broncjiles and terminal bronchioles

what do club cells do

secrete lipoprotein acts as surface active agent, progenitor cells (repai and regenration), xenobiotic metabolism ( immune function)

features of type 1 (pneumocytes)

• very squamous (25nm)

• organelles very near nucleus = extranuclear regions v thin

• cover 95% gas exchange surface

type 2 cells features

• simple cubpidal

• found at alveolar wall junction

• 5% gas exchange surface

• lamellar bodies contain pulmonary surfactant

• progenitor cells

• xenobiotic metabolism

total lung capacitu

4-6L

conversational speech

1.5 L

voice projection

2.5L