HISTOLOGY OF SKELETAL TISSUES 
35 
For comparison study permanent preparations ( e.g., cross 
sections of the intestine) in which areolar tissue may be seen in 
place in its relation to the other tissues which make up the organ. 
Record by drawing. 
Examine permanent preparations (Lab. SI. Coll.) of adipose 
tissue (e.g., in toto mounts of thin fatty deposits in the mesentery). 
Note that the cells have become enormously distended and spher¬ 
ical in form by the accumulation of fat which has crowded the 
nucleus and cytoplasm to one side of the cell. Draw a few of 
these fat cells. 
2. Dense Forms. 
As an example of the fibrous fascicular variety study per¬ 
manent preparations (Lab. SI. Coll.) of tendons. Note that in 
the longitudinal section the intercellular substance is seen to 
consist of large bundles of fibers arranged parallel to each other, 
with the cells flattened into the spaces between, and thus appear¬ 
ing in rows. Transverse sections of tendon show the cut ends of 
the large bundles of fibers delimited by the plate-like cytoplasmic 
processes of the lamellar cells which are crowded into the angles 
between the bundles. The septa which may be seen to separate 
the different portions of the tendon are of areolar tissue. Make 
such drawings of sections of tendon as will clearly show your concep¬ 
tion of the structure of this variety of tensile tissue. 
As an example of the elastic variety of tensile tissue study per¬ 
manent preparations (Lab. SI. Coll.) of an elastic ligament 
(e.g., the ligamentum nuchae). In a teased preparation or in 
longitudinal section note that the bulk of the structure consists 
of a heavy reticulum of elastic strands with narrow elongated 
meshes. In transverse section the highly refractive appearance 
of the cut ends of the elastic strands will be noted, as well as the 
scattered cells which lie among the delicate bundles of white 
fibers which fill the meshes of the reticulum. Make such drawings 
as will show the structure of the elastic variety of tensile tissue. 
B. RIGID TISSUES, 
i. Cartilage. 
Mount in physiological salt solution a thin transverse section of 
fresh hyalin cartilage (e.g., costal cartilage of some young mam- 
