BLOOD VESSEL DISEASES Blood vessels have a primary function of nourishing various organs and tissues of the body by supplying them with blood. Vascular diseases are manifested clinically through three mechanisms that are reflected through the diseased vessel (s) as 1. Progressive narrowing of the lumen associated with progressive ischemia of the relevant tissues. 2. Thrombosis associated with p...

Specific problematic issues addressed , page 8 Vygotsky's theory of learning and development, page 9 Subsequent developments in the Cultural-Historical Theory as a foundation for instructional practices, page 13 Description of the innovation, page 17 The authors are responsible for the choice and presentation of the facts contained in this publication and for the opinions expressed therein, whi...