Endocrine system - functions
Professor Bruce McEwen describes some of the key players in the endocrine system - hypothalamus, pituitary gland, adrenal cortex, sex glands, and hormones.
Well, I would think from the standpoint of stress we would talk about a molecule called CRF, which is produced by the hypothalamus, which causes ACTH to be released by the pituitary gland, which goes to the adrenals and causes cortisol to be produced by the adrenal cortex. We also have gonadotropin releasing hormone, a hypothalamic hormone from the brain, which causes the release of the gonadotropic hormones from the pituitary, which causes the production of sex hormones by the gonads, by the ovaries and testes. Then we also have cytokines, which are products related to the immune system, which have functions in inflammation, and also in mounting an immune response. But they also actually are produced in small amounts in the brain itself, and even circulating inflammatory molecules can signal back into the brain as well, just as the sex hormones and cortisol can also signal back to the brain.
endocrine, system, endocrinology, acth, gonads, ovaries, testes, immune, hypothalamus, pituitary gland, adrenal cortex, sex glands, hormones, bruce, mcewen
Professor Bruce McEwen describes the endocrine system, which regulates hormones, the autonomic nervous and immune systems.
Professor James Potash explains that the HPA (hypothalamic pituitary adrenal) axis is the system that control the stress response. The hormone cortisol is intrinsic to this system.
Professor Bruce McEwen discusses differences between the sexes in coping with stress. These are mediated by hormonal, neural, and genetic factors.
Professor Bruce McEwen discusses how the amygdala is involved in processing fear and stress.
A new theory of the neuroscientific basis for the human instinct for fair play.
Oxytocin (OXT) is a gene that plays a role in social behaviors in many species. Oxytocin dysfunction may be a cause for autism.
Professor Bruce McEwen describes the blood-brain barrier, which prevents most proteins from accessing the brain. Selective proteins can cross the barrier, instigating processes such as neurogenesis.
The limbic system is a group of brain structures including the amygdala, hippocampus, and hypothalamus that are involved in processing and regulating emotions, memory, and sexual arousal.
Professor Bruce McEwen describes how the hippocampus and prefrontal cortex mediate the parasympathetic system, which is associated with risk-taking.