Vietnam or Thailand ? Vote for the TOP Country of the Week !
We call them vascular glands, and we believe that they elaborate colored and uncolored blood-cells; but just what changes they effect, and just how they effect them, it has proved a very difficult matter to determine.
The red blood-cells do not escape from the blood-vessels in any numbers unless the walls of the blood-vessels become injured or badly diseased. The causes of inflammation may be grouped under the following heads: mechanical, chemical, thermic and infectious. The mechanical or traumatic causes commonly produce inflammation in domestic animals.
In them we find blood-vessels for the first time, distributing real blood through the body. The blood is red, and the red colouring-matter is haemoglobin, connected with elliptic discoid blood-cells, as in the Vertebrates.
Word Of The Day