Hypothalamus releases corticotropin-releasing hormone (CRH) ---> Pituitary gland releases adrenocorticotropic hormone (ACTH) ---> ACTH stimulates the adrenal cortex ---> adrenal cortex releases cortisol into the blood stream ---> cortisol affects target cells, and ceases once homeostasis is reached.
A bacteria, which possesses capsule is a capsulated bacteria. The purpose of capsule staining is to observe bacterial capsule by distinguishing capsular material from the bacteria cell. Principle: In capsule staining, a smear of bacteria is made at the center of a slide.
H&E staining is a common method used in histology. The hematoxylin stains the nuclei of cells (purple), the control center of the cell where the DNA is located. The eosin stains proteins (pink). The white blood cells shown here (left panel) are eosinophils (nucleus with 2 lobes) and neutrophils (nucleus with 2-5 lobes).