The sympathetic division of the vertebrate autonomic nervous system has evolved the fight-or-flight response to counter stress-induced disruptions of homeostasis. Stressors are stimuli that disrupt homeostasis. The adrenal medulla is really a modified sympathetic ganglion whose cell bodies do not have axons. Each adrenal gland is composed of an inner adrenal medulla, which secretes catecholamines, and a surrounding adrenal cortex, which secretes steroid hormones. Interactions of the endocrine hormones have evolved to ensure the body’s internal environment remains stable. There are two adrenal glands, one above each kidney. Study with Quizlet and memorize flashcards containing terms like Be able to list the location of the following endocrine glands: hypothalamus, anterior pituitary gland, posterior pituitary gland, pineal gland, thyroid gland, parathyroid gland, pancreas, adrenal glands, and gonads., Name and describe the hormone produced in the pineal gland, Describe the gross anatomy and histology of the.
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