Parathyroid hormone

Estrogen is the primary female sex hormone, while testosterone is for the male. Among its many effects in the body, estrogen is mainly released during puberty to initiate development of female secondary sex features (e.g. breast, pubic hair) and progesterone is highly active during ovulation to help thicken the uterus lining in preparation for pregnancy. Thymopoietin is the hormone released by the thymus to stimulate the growth of T-lymphocyte cells and the melatonin hormone is produced by the…

or being legally blind, but that’s not the case. One such condition that is not readily apparent that can qualify you to receive social security disability is parathyroid gland disorders. What is Parathyroid Gland Disorders Parathyroid gland disorders is an endocrine disorder, and your endocrine system is the one that handles the hormone levels in your body. This disorder has an impact in the level of calcium that is found within your body, and it can either be too high or too low. Your…

Vitamin D exists in two forms. These forms are Vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). Vitamin D3 production occurs in the skin when exposed to ultraviolet sunlight. Such exposure to ultraviolet light initiates conversion of 7-dehydrocholesterol to Provitamin D3, a precursor of Vitamin D3, and consequently to Vitamin D3. Moreover, it can be obtained from animal sources including fish’s liver oil and flesh of fatty fish. On the other hand, Vitamin D2 (ergocalciferol) is…

Positive Feedback Mechanism accelerates output created by a activated stimulus. Here are some examples of homeostasis mechanisms:- 1) Regulation of the blood calcium level- If the calcium level is high in blood it causes the secretion of a polypeptide hormone called calcitonin from the thyroid…

tissues into the blood. 2. When athletes train at high altitude they are taking in air with less oxygen per volume. These oxygen levels are not high enough to provide the muscles with the necessary energy so to compensate the body releases the hormone erythropoietin, which stimulates red blood cell production. When the athletes head to competition at lower altitudes the take advantage of this increased ability to absorb oxygen, improving performance. 3. During agglutination the antibodies in…

ntroduction The parathyroid glands are four tiny glands located next to the thyroid gland in your neck. The glands release parathyroid hormone (PTH). Hypoparathyroidism is a condition in which not enough PTH is produced to keep levels of calcium, phosphorus, and vitamin D balanced in your body. The calcium levels in your blood and bones become too low, and the phosphorus levels get too high. What are the causes? This condition is caused by: Removal of or injury to your parathyroid glands as a…

There are a number of disturbances that can act as stimuli for a feedback mechanism. According to Dorland (2012), a stimulus can be defined as any agent, act, or influence that will elicit a reaction in a receptor or an irritable tissue. These disturbances can act as stimuli because they are departures or divergences from that which is normal (Dorland, 2012). Dorland (2012) goes on to explain that feedback is when some of the output of a system is returned as input so as to exert some control in…

Thyroid hormones effect every cell and all the organs of the body. Too much thyroid hormones speed everything up and too little thyroid hormone slow things down. The pituitary gland and the thyroid gland work together. The pituitary gland (located near the base of the brain) makes, stores, and releases thyroid-stimulating hormone (TSH). When TSH is secreted by the pituitary gland, it causes the thyroid gland to release more T3 and T4. A high TSH level means there isn't enough thyroid hormone,…

Calcium is very important for muscle and nerve function. There are two important glands that work to keep the calcium levels within the blood balanced: the thyroid and the parathyroid glands. When the body has low blood calcium levels the parathyroid gland will act and secret PTH which will activate osteoclasts. The osteoclasts will help break down the bone and release the calcium from the bones to the blood stream. While it will also activate vitamin D which will help increase the absorption…

bone is remodeled. Include the cells and hormones involved in the process. • Bone remodeling is essentially a lifelong process. The mature bone tissue is removed and replaced the new bone tissue. This promotes healthy bones and can also reshape the bones from injuries like fractures. Osteoblasts secrete new bone tissue while osteoclasts break down the old bone tissues. The body signals the correct amount of growth through parathyroid and growth hormones as well as vitamin D, steroids, and…