Parathyroid hormone

Some of these glands produce up to 2 secretions (Hormones) but mostly each gland will have the task of producing one. These glands are ductless, which is why they secrete directly into the blood. This is a list of the glands which are a part of this system; Pineal, Pituitary, thyroid, parathyroid, adrenal and parts of the pancreas, ovaries and testes. Digestive system - The digestion system has two parts to it, the alimentary…

used voles as subjects, because of their distinct social behavior. They showed that prairie vole pups, which are part of monogamous species, react to social isolation with ultrasonic calls as well as an increase in corticosterone level, which is a hormone involved in stress responses. On the other hand, montane vole pups, which are promiscuous species, did not respond to social isolation as a stressor, but on the contrary did produce ultrasonic calls and presented a rise in corticosterone in…

According to WHO (World Health Organization) adolescence is the period that happens between the ages of 10 to 19 in which human growth and development occurs. Throughout the life span, adolescence signifies an important transition from childhood, as it is a period of ‘newness’ and change, which can be seen in the person, the dyad and the environment’. Linda P Spear supports this as she defines adolescence as ‘a period of physical, psychological and social transition between childhood and…

The stages of human life Every human being born, grows, matures, grows old and dies. These stages are a process of continuous physical, psychological and intellectual changes. It is an irreversible and permanent evolution of changes, our body has stages of growth, maturation and degeneration. The stage of Infancy or childhood is an important stage of development, in which many skills, such as speaking, reading and understanding acquired ideas. During this period children become more precise in…

electrical signal is triggered the nerve cell will secrete a chemical, the neurotransmitter, which will diffuse across the synapse. The synapse is a compact space between the target cell and the nerve cell. Hormonal Signaling Endocrine cells secrete hormones into the blood vessel, which then send them to target cells. For any cell signaling and response to happen, a specific cell must send a molecule to a target cell. Stages of Cell Signaling Cell signaling is split into three different stages…

exhibit sex differences. For example, a higher proportion of somatotrope cells respond to growth hormone releasing hormone (GHRH) in males than in females (71). It is possible that something similar may be happening with the gonadotrope population due to expression of ICAM5. Also, cell networks can be regulated by hormonal mechanisms because gonadectomy alters the responsiveness of cells to GHRH, including hormone release and cell motility (71, 72). In gonadotropes, GnRH treatment leads to an…

Endocrine disruptors is the given name for a group of chemicals that, at certain doses, can interfere with the hormone system within mammals as well as fish and amphibians. They can be naturally occurring chemicals e.g. Arsenic, or manmade chemicals e.g. hormonally active substances excreted by humans using certain pharmaceutical products, as well as a number of chemicals derived from everyday cosmetics, plastics and personal care products. These disruptors can lead to a variety of debilating…

not the benefits that using certain compounds affords us is worth the damage they can potentially cause is the basis for the ongoing controversy. Endocrine disruptors have the ability to act like hormones already present in the body and can therefore result in overstimulation. They can also block hormones from properly binding and effect how they are produced and maintained. Many problems exist but not many solutions. It is difficult to ban chemicals that are also relied upon for massive…

physical activity. She stated that women in Bolivia and other cultures are exposed to a higher physical activity from childhood, and therefore, are not affected by this. From gathering this data, she wants to further her research and understand why hormone levels are significantly lower in Bolivian women compared to women in the United States. In the last ten years, Bolivian women and women in other cultures have started to use more contraceptives. The issue is that they are showing an…

In the article, Hormones: Their Effect on the Oral Cavity, it first talks about the cause of periodontal disease. It says that plaque is the primary factor in the development of periodontal disease along with systemic and local factor. In this article, the author explains how different hormones work in our body and how they can cause periodontal disease. For example, the ovaries produce sex hormones that play a role in the female reproductive system. These sex hormones, estrogen and progesterone…