SYSTEMATIC ANALYSIS OF ORGANS. 139 



530. IT MUST NOT BE SUPPOSED that passing from 

 the study of Organs to that of Tissues is a step down- 

 ward, in the sense of inferiority of importance. 



531. THE STUDY OF TISSUES is more important than 

 that of Organs, for evidently their properties wholly de- 

 pend upon those of their Tissues. 



532. EACH TISSUE IN AN ORGAN ACTS independently, 

 and an organ exhibits not the combined but the collec- 

 tive properties of its Tissues j therefore, 



533. THE PERFECTION OF THE STRUCTURE OF THE 

 WHOLE BODY depends upon the perfection of its Tissues, 

 Fluids, and Gases. But, 



534. TISSUES DO NOT EXIST as such in the Blood; 

 only their elements exist in it. 



535. IT is A QUESTION whether any of the other 

 Fluids exist as such in the Blood. Probably some of 

 them do; others certainly do not. 



536. EACH TISSUE HAS the property, under proper 

 influences, of forming itself from elements furnished by 

 the Blood, and drawn from it by the Tissue. 



537. THE FORMATION OF PERFECT TISSUE requires 

 three conditions: 1st, Perfect Tissue to form itself; 2d, 

 Perfect influences ; and, 3d, Perfect elements furnished 

 by the Blood. Default in either will produce a deranged 

 organ. 



538. THE TISSUES, OR THE INFLUENCES ACTING UP- 

 ON THEM, IN ONE ORGAN MAY BE perfect, and those in 

 another imperfect ; while if the elements furnished are 

 imperfect, all the corresponding Tissues of the whole 

 Body must be imperfect. 



539. Inf. The Body must not be studied as com- 

 posed of, nor the Tissues as composing, Systems; but 

 the Tissues must be studied as parts of Organs, that 

 their liabilities to derangement may be understood. 



540. Inf. To UNDERSTAND TISSUES, their Elements, 

 and how they are produced, must be understood. s 



530. What ? 531. What said of ? 532. How does ? 53B. On what ? 534. Do 

 ? 535. What ? 586. What - ? 537. What ? 538. What ? 539. How ? 



