in no case has the pleura received any capillary injection. But regarding this statement in connection with the previous one, it should, I conceive, be shewn that when both the pulmonary and bronchial vessels are injected in the same specimen, that a system of vessels in the pleura are filled in connection with the pulmonary vessels which are placed superficially to those that are filled directly from the bronchial arteries. The author states that “The costal pleura derives its supply of blood from the pulmonary vessels” P.4. He says “About eight or ten arteries of considerable size derived from the pulmonary artery and about twelve or sixteen corresponding veins of some magnitude cross behind that fold of the pleura (which sometimes goes by the name of the broad ligament) to reach the thoracic pleura and to become distributed on it” P.4.
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Referee report by W. S. Savory on 'Physiological Anatomy of the Lungs' by J. N. Heale, 1860. From The Royal Society, RR/4/123
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