While reading and studying the functions of the blood, remember there are the physical side and the spiritual side which is explained as the blood flows to each cell of the fleshly body and to each member of the body of Christ.
There are many different kinds of tissues in the human body; like muscle, nerve, fat, glands, bone tissues and many more, and all these tissues have cells with their own function.
The blood is a fluid and flows throughout the entire body, which supplies every human cell with nourishment and maintains every cell, by carrying off waste that the cells burn off. You will see that the spiritual body works in the same fashion.
Every cell or member in the body, either the human body or the body of Christ is constantly supplied and cleaned at the same time by the blood, either the human blood or the sinless blood of Christ. The blood is the most mysterious of all tissues, being a function that’s been a mystery until God revealed it in His Word, “life is in the blood“.
When the blood fails to reach the cells of the human body, they die and no man ever dies, until his blood stops flowing and circulates.
And in the same fashion without accepting the sinless blood of Christ to flow in you, you will not be “born again” from above.
“THE CHRISTIAN RELATION TO THE BLOOD OF CHRIST”