Adrenal example sentences
The endocrine system is composed of hypothalamus, pituitary and pineal, thyroid, adrenal, pancreas, parathyroid, thymus and gonads (testis and ovary).The adrenal gland is composed of the centrally located adrenal medulla and the outer adrenal cortex.The adrenal gland releases large amount of catecholamines (epinephrine and norepinephrine) into the blood stream.The adrenal medulla secretes epinephrine and norepinephrine.When the human body is placed under physical or psychological stress, it increases the production of certain hormones, such as adrenaline and cortisol.Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of Figureht or Flight.This is done in many animals, including human beings, using a hormone called adrenaline that is secreted from the adrenal glands.The presence of a noxious stimulus or stressor leads to activation of the adrenalpituitary- cortex system.The centrally located tissue is called the adrenal medulla, and outside this lies the adrenal cortex.ACTH stimulates the synthesis and secretion of steroid hormones called glucocorticoids from the adrenal cortex.The adrenal cortex can be divided into three layers, called zona reticularis (inner layer), zona fasciculata (middle layer) and zona glomerulosa (outer layer).Our body has one pair of adrenal glands, one at the anterior part of each kidney (Figureure 2 4 a).The adrenal cortex secretes glucocorticoids and mineralocorticoids.Small amounts of androgenic steroids are also secreted by the adrenal cortex which play a role in the growth of axial hair, pubic hair and facial hair during puberty.Angiotensin also activates the adrenal cortex to release Aldosterone.
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