Blood is a connective tissue with a fluid matrix called plasma. Three basic types of cells are found suspended in plasma:The Erythrocytes (red blood cells) are pink with a light center (where the cell is thinner and the light shines through).onnective tissue fibers, blood vessels, and sweat glands can be seen embedded in the adipose tissue. As the photomicrograph illustrates this tissue consists of adipocytes that contain lipid droplets. Adipose Tissue: 1  Description: Resembles a chicken-wire fence.
It is possible that hypofunctional 5-HTP cells (reflecting TPH1 dysfunction) in the periphery, leading to deficient 5-HTP, low 5-HT, and concomitant compensatory TPH2 activation in the brain, may cause endogenous depression.
Causes of Depression. Tweet. THERE ARE 3 main points of view about the causes of depression. Most commonly held is the view that it is generally some combination of these three. Depression is a medical disease, caused by a neurochemical or hormonal imbalance. Depression is caused by certain styles of thinking. Depression is a result of unfortunate experiences.