14 THE ELEMENTARY TISSUES 



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

 regular and branched fibers. It is characterized by its 

 marked elasticity. It is found in the vocal cords, longitudi- 

 nal coat of the trachea and bronchi, inner coat of blood-ves- 

 sels, 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 Hienle in the 

 arteries. 



FIG. 10. Elastic fibers FIG. 11. Group of fat-cells (F c) 



from the ligamenta stibflava. with capillary vessels (c). (Kirkcs 



X200. (Halliburton after after Noble Smith.} 

 Sharpey.] 



(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 nymphse and in certain parts of the 

 lungs. It is nearly always found within the meshes of are- 

 olar 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 



