Adrenalin is a hormone and neurotransmitter which is secreted by the adrenal glands and certain neurons in response to panic, threat, or fear (fight or flight response). Stress is another stimulus for secretion of this hormone.
Adrenal cortex, which comprises 89–90% of the gland and located peripherally.
Adrenal medulla, which is small and centrally located.
A connective tissue capsule covers the gland. The adrenal glands are richly supplied with the blood flow. Steroid hormones are produced by the adrenal cortex which is essential for maintaining electrolyte balance in the body. Complete loss of adrenocortical hormones lead to death due to dehydration and electrolyte imbalance in a few days to week which can be treated...