The circulatory system is a network of flexible tubes through which blood flows as it carries oxygen and nutrients to all parts of the body.
(The circulatory system; is; a network of flexible tubes through which blood flows) (blood; flows; ) (it; carries; oxygen and nutrients; to all parts of the body)
The circulatory system blood it
is flows carries
a network of flexible tubes through which blood flows
oxygen and nutrients to all parts of the body