The Endocrine System
The adrenal glands are located directly atop each kidney. There are two portions to the adrenal gland. The inner portion, the adrenal medulla, is responsible for releasing catecholamines. Epinephrine is the most common of these, but is more commonly known as adrenaline. The outer portion, the adrenal cortex, releases steroids, or hormones derived from cholesterol. The secretions of the adrenal glands are controlled by the region of the brain known as the hypothalamus.
The hypothalamus is mainly responsible for linking the endocrine system to the nervous system via the pituitary gland. The hypothalamus is located directly underneath the thalamus, just above the stem of the brain. The hypothalamus creates and controls the release of neurohormones, which in turn control the pituitary glands hormone release. One other major thing controlled by the hypothalamus is sexual desire. This organ is responsive to light (for circadian rhythm), steroids, and invading......

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Title: Endocrine System
Approximate Word Count: 530
Approximate Pages: 3 (250 words per double-spaced page)

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