Figure 187 from Chapter 5 (Endoplasmic Reticulum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. An abundance of smooth endoplasmic reticulum is apparent in this Leydig cell of the opossum testes, ass...

Figures 284 (upper) and 285 (lower) from Chapter 9 (Peroxisomes) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Diaminobenzidene reacts with peroxidase to produce a dense reaction product in the perox...

Steriod-secreting cells exhibit unusual diversity in the cristae of their mitochrondria, like these examples from testicular Leydig cells of the ground squirrel Citellus lateralis. Small alveolar cri...

Figure 360 from Chapter 15 (Cytoplasmic Inclusions) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Leydig cell from a reproductively active ground squirrel, Citellus lateralis. Physiological state ca...

Mitochondria can show tremendous variation in size, even within a single cell. Here, a huge spherical mitochondria of about 6-7 µm in diameter is adjacent to small elongate mitochondria 0.5 µm wide...

A transmission electron micrograph of a Leydig cell isolated from guinea pig testes.The eccentric nucleus and several pale lipid droplets are visible. Numerous mitochondria and smooth endoplasmic ret...

Figures 213 (upper) and 214 (lower) from Chapter 6 (Golgi Apparatus) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. The Golgi complex of a Leydig cell from guinea pig testis (upper) and from and acina...

A transmission electron micrograph of a Leydig cell isolated from guinea pig testes. This is a higher magnification image of CIL: 41116 highlighting the distinct nucleolus and a membrane-bound, debri...

Transmission electron micrograph of Leydig cell nucleus from the domestic boar contains a region (arrow) thought to represent the single X chromosome which is largely heterochromatic. The chromosome i...

Figure 274 from Chapter 8 (Lysosomes) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Lysosomes in interstitial Leydig cells of the testis from the domestic boar, Sus scrofa. The laminar inclusions ap...