These cells are located can be found in the lining of the pericardial, peritoneal, and pleural body cavities (mesothelium). They are also found in the lining the inner surfaces of blood vessels (endothelium) and in the alveoli of the lungs.

These cells consist of a single layer of flat cells with a flattened nucleus that form thin linings of the body parts listed above.

Compact bone tissue is located in (you guessed it) the bones in the skeletal system

If you look closely at this tissue, you can see small rounded "dotted" lines. Those are called lacuna; they house osteocytes. The dark circle is the haversian canal that contains blood vessels. The ring that surrounds everything is called the osteon; this is the structural unit of compact bone.

Reticular connective tissue is located in the liver, spleen, kidneys, lymph nodes, and bone marrow.

The small pink dots are reticular cells, and they secrete thin branched reticular fibers. The black lines are the reticular fibers. Together the cells and fibers form supportive stroma (framework)

The outline yellow outline small intestines look like the reticular fibers of the reticular connective tissue, and the little black dots inside of the highlighted small intestines looks like reticular cells.

Dense regular tissue is found in tendons, ligaments, and aponeuroses.

The purple lines/dots are the nucleuses of the fibroblasts and the white lines are collagen fiber bundles that are arranged into parallel rows.