Continuous capillary
Continuous capillaries are plentiful in the lung, where gas exchange occurs between air in the lung and blood in the capillaries. This exchange occurs in small air sacs called alveoli whose wall contains numerous capillaries. Red and white blood cells can be seen in some of these capillaries. The features that distinguish a continuous from a discontinuous capillary are not visible with the light microscope. 1000x
Capillaries
Continuous capillaries are plentiful in the lung, where gas exchange occurs between air in the lung and blood in the capillaries. This exchange occurs in small air sacs called alveoli whose wall contains numerous capillaries. Red and white blood cells can be seen in some of these capillaries. The features that distinguish a continuous from a discontinuous capillary are not visible with the light microscope. 1000x
- Endothelial cells
Continuous capillaries are plentiful in the lung, where gas exchange occurs between air in the lung and blood in the capillaries. This exchange occurs in small air sacs called alveoli whose wall contains numerous capillaries. Red and white blood cells can be seen in some of these capillaries. The features that distinguish a continuous from a discontinuous capillary are not visible with the light microscope. 1000x
Air spaces
Continuous capillaries are plentiful in the lung, where gas exchange occurs between air in the lung and blood in the capillaries. This exchange occurs in small air sacs called alveoli whose wall contains numerous capillaries. Red and white blood cells can be seen in some of these capillaries. The features that distinguish a continuous from a discontinuous capillary are not visible with the light microscope. 1000x
Blood cells
Continuous capillaries are plentiful in the lung, where gas exchange occurs between air in the lung and blood in the capillaries. This exchange occurs in small air sacs called alveoli whose wall contains numerous capillaries. Red and white blood cells can be seen in some of these capillaries. The features that distinguish a continuous from a discontinuous capillary are not visible with the light microscope. 1000x