This hormone is often considered the “fight or flight” hormone and plays an important role in influencing how the body responds to acute stress. One of the hormones produced by the adrenal medulla is epinephrine, commonly known as adrenaline. The adrenal medulla is the main component responsible for the animal’s “fight or flight” response mechanism. The inner portion of the adrenal glands, called the medulla, is responsible for the production of two very important hormones when the dog is under severe and acute stress. The inner medulla, on the other hand, appears darker and more homogenous. Each zone is responsible for producing different hormones that play an important role in influencing functions and metabolic pathways in the body. ![]() The cortex is composed of three zones, namely the Zona Glomerulosa, Zona Fasciculata, and Zona Reticularis. The outer cortex is mostly yellow in appearance and has striations that are radially directed. These parts are composed of different cells and tissues, which originated from different embryonic structures, and have entirely different functions in relation to influencing metabolic pathways in the dog’s body. ![]() The gland consists of two parts: an outer cortex and an inner medulla. They are so small that for centuries, they were ignored by anatomists! The adrenal glands are a pair of small glands located in the abdominal space, near the left and right kidneys.
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