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Heredity, Hormones, And Human Behavior Essay

728 words - 3 pages

Heredity, Hormones, and Human Behavior Thomas Bullard University of Phoenix BEH 225 Wayne Rhode March 5, 2009 In this essay I will explore heredity and hormones. I will compare and contrast the influence of heredity and hormones on people’s behavior. How does heredity and hormones work together or with the human body? I will also explore the endocrine system, identify hormones, and glands. Also identify what glands secret what. Heredity and Hormones Heredity is the transmission of characteristics from parents to children through the influence of genes (Clayman, 1993). Heredity was first discovered in the mid 1800’s; however, scientists did not fully understand genes and how they ...view middle of the document...

There are many different glands in the endocrine system. Thyroid Gland Pineal Gland Pituitary Gland Pancreas Adrenal Glands The thyroid gland is just below the larynx and produces one main hormone called thyroxin. This hormone regulates the body’s metabolism. Within the thyroid gland are para-thyroids, which are tiny organs that control the amount of calcium and phosphates in the body (Morris, 2005). The pineal glands are located in the brain. The produce and secrete a hormone called melatonin, which regulates “sleep '' wake cycles” (Morris, 2005). The pancreas is between the stomach and the small intestines. It controls the amount of sugar in the bloodstream by secreting two hormones called insulin and glucagon. These two hormones fight against each other to produce a healthy sugar level in the body. The pituitary gland is, again, in the brain and is connected to the hypothalamus. The pituitary gland produces the biggest number of different hormones and has the widest range of effects on the body’s functions. (Morris. 2005). The adrenal glands are located near the kidneys and each of them has two parts. The inner parts are called the adrenal medulla and the outer layers are called the adrenal cortex...

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