Medical Facts

The blood is an opaque, rather viscid fluid, of a bright red or scarlet colour when it flows from the arteries, of a dark red or purple colour when it flows from the veins. It is salt to the taste, and has a peculiar faint odour and an alkaline reaction. Its specific gravity is about 1.060, and its temperature is generally about 100 degrees fahrenheit, though varying slightly in different parts of the body.            (Gray's Anatomy 15th Edition)

Lymph

Is a transparent, colourless or slightly yellow fluid, which is conveyed by a set of vessels, named lymphatics, into blood. Lymph as its name implies, is a watery fluid of specific gravity of 1.015, closely resembling the blood plasma, but more dilute, containing only about 5 percent of proteids and 1 percent of salt and extractives. (Grays Anatomy 15th edition) The Lymphatics have derived their name from the appearance of the fluid contained in their interior (lympha, water). They are also called absorbents, from the property they possess of absorbing certain materials from the tissues and conveying them into the circulation.

The Brain

The encephalon or brain is that portion of the cerebro-spinal axis which is contained in the cavity of the cranium. For the purposes of description it may be divided into five parts: 1- the two cerebral hemispheres, 2- the inter-brain, 3- the mid-brain, 4- the pons Varolii and cerebellum, 5- the medulla oblongata. (Grays Anatomy 15th edition)