14 THE ELEMENTARY TISSUES 



(b) Yellow elastic tissue is composed of bundles of long, regu- 

 lar and branched fibers. It is characterized by its marked 

 elasticity. It is found in the vocal cords, longitudinal coat of 

 the trachea and bronchi, inner coat of blood-vessels, especially 

 the large arteries, and in some ligaments. Its yellow-tinted 

 fibers are seen in parallel waves and are larger than those in 

 the white tissue. They sometimes form a web-like layer, as in 

 the fenestrated layer of Henle in the arteries. 



FIG. 10. Elastic fibers from 

 the ligamenta subflava. Xaoo. 

 (Halliburton after Sharpey.) 



FIG. 1 1 . Group of fat-cells (F c) with 

 capillary vessels (c). (Kirkes after 

 Noble Smith.) 



(4) Adipose Tissue. This tissue exists in nearly all parts 

 of the body except the subcutaneous tissue of the eyelids, the 

 penis and scrotum, the nymphae and in certain parts of the 

 lungs. It is nearly always found within the meshes of areolar 

 tissue, where it forms lobules of fat. Fatty matter in the form 

 of oily tissue is found in the brain, liver, blood and chyle. The 

 tissue is densest beneath the skin, especially of the abdomen, 



