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Crying not only expands the lungs, but also has a favorable influence upon needful alterations in the fetal circulation. The lungs, since they must from this time on provide oxygen for the infant, need to receive more blood than formerly. The vessels leading toward them must be widely opened, and structures which previously diverted the blood-stream to the navel must be closed.

The primary infection is usually in a wound for example, a compound fracture but cases occur in which the point of entrance of the bacteria is not discoverable. The dissemination of the organisms takes place through the medium of infected emboli which form in a thrombosed vein in the vicinity of the original lesion, and, breaking loose, are carried thence in the blood-stream.

Not only do all those normally circulating in the blood flowing through the injured part promptly stop and begin to scatter themselves through the underbrush and attack the foe at close quarters, but, as has been shown by Cabot's studies in leucocytosis, the moment that the red flag of fever is hoisted, or the inflammation alarm is sounded, the leucocytes come rushing out from their feeding-grounds in the tissue-interspaces, in the lymph-channels, in the great serous cavities, and pour themselves into the blood-stream, like minute-men leaving the plough and thronging the highways leading towards the frontier fortress which has been attacked.

Lucky I caught you this generation, before the doctors had saved your appearances. Yet, caro mio, whether it shows or not, there you once had immediate connection with the maternal blood-stream.

#Thrombosis# is more common in veins than in arteries, because slowing of the blood-stream and irritation of the endothelium of the vessel wall are, owing to the conditions of the venous circulation, more readily induced in veins.

From the solar plexus you know that all the world is yours, and all is goodly. This is the great center, where in the womb, your life first sparkled in individuality. This is the center that drew the gestating maternal blood-stream upon you, in the nine-months lurking, drew it on you for your increase.

It is exceptional for the irritant to reach the gland through the blood-stream. It is possible for gonococci to lie latent in the inguinal glands for long periods, and only give rise to lymphadenitis if the glands be subsequently subjected to injury. The glands most frequently affected are those in the neck, axilla, and groin.

By its readiness to change over from the oxidized to the reduced state, it can serve the plant in the assimilation of light, while by its readiness to make the reverse change it serves man and animal in the breathing process. We breathe in oxygen from the air; the oxygen circulates through the blood-stream and passes out again in conjunction with carbon, as carbon dioxide, when we exhale.

I bear the shaft of battle that is four-wise cloven through, And its each end dipped in the blood-stream, both the iron and the horn, And its midmost scathed with the fire; and the word that I have borne Along with this war-token is, 'Wolfings of the Mark Whenso ye see the war-shaft, by the daylight or the dark, Busk ye to battle faring, and leave all work undone Save the gathering for the handplay at the rising of the sun.

We have discovered in recent years that there exist other corpuscles or cells in the blood in much smaller quantity, which are called white cells, and these different cells float in the blood-stream within the vessels. The red take the centre of the stream; the white lie externally near the sides of the vessels, moving less quickly. Our business is mainly with the red corpuscles.