332 APPENDIX. 



9. The Glandular System 



10. The Adipose System. 



11. The Cellular System. 



12. The Dermoid System 



In a treatise so entirely elementary as this is intended 

 to be, a distinct account of each of these systems can 

 not be expected, nor is this necessary for the design of 

 this work, as it would comprehend a detailed system of 

 the anatomy of the human body. A short explanation 

 of what some few of these systems comprehend, will in- 

 dicate to the pupil what is intended by the others, and so 

 of the whole. 



The bony system of texture refers only to the interior, 

 or cellular portions of the bones, and not to their exter- 

 nal and solid parts, which do not consist of tissues. 



The cartilaginous system refers to that white, semi- 

 hard substance called gristle, which is attached to the 

 bones, and must be distinguished from the ligaments and 

 tendons, the latter of which are attached to the muscles, 

 while the former act as binders of the tendons. 



The vascular system includes the veins and arteries, 

 as well as the vessels which transmit colorless fluids, as 

 the chyle and tears. 



The dermoid system refers to the skin. 



The adipose system to the fat, &c. 



THE BONES, OR OSSEOUS SYSTEM. 



Osteology is a discourse, or treatise, on the bones. 



Anatomy, which includes an examination of all the in- 

 struments of life, signifies to dissect, or cut up. Our 

 present subject, therefore, only refers to a description of 

 the frame-work, or hard parts of the animal system. 



Skeleton. A complete assemblage of the dry bones 

 of an animal is called a skeleton, which term means "to 



, _ . 



What are the systems of texture enumerated ? To what does the bony 

 texture refer? To what does the cartilaginous texture refer? To what does 

 the vascular system refer ? What is the dermoid texture ? What the adi- 

 pose texture ? 



