What growth hormone does, how it’s stimulated, inhibited and disorders related to it.
Physiology
Prolactin (Lactogenic Hormone)
All about prolactin.
Adrenocorticotropin Hormone (ACTH) including Cortisol
The hypothalamus releases the following Releasing Hormones that stimulate the release of different hormones from the adenohypophysis: Corticotropin Releasing Hormone (C.R.H. causes the release of ACTH) Thyrotropin Releasing Hormone (T.R.H. causes the release of Thyroid Stimulating Hormone aka Thyrotropin) Gonadotropin Releasing Hormone (GnRH releases LH and FSH.) Growth Hormone R.H. & Growth Hormone I.H. Prolactin R.H. & Prolactin […]
Stress and Cortisol
On the right is a lab form for testing hormone levels in the body and it’s all done by RIA. The very first hormone listed is cortisol. Notice it shows the cortisol levels are different between night (PM) and day (AM). It’s higher when you wake up, generally in the morning (unless you work graveyard […]
Thyroid Stimulating Hormone (Thyrotropin)
The hypothalamus releases the following Releasing Hormones that stimulate the release of different hormones from the adenohypophysis: Corticotropin Releasing Hormone (C.R.H. causes the release of ACTH) Thyrotropin Releasing Hormone (T.R.H. causes the release of Thyroid Stimulating Hormone aka Thyrotropin) Gonadotropin Releasing Hormone (GnRH releases LH and FSH.) Growth Hormone R.H. & Growth Hormone I.H. Prolactin R.H. & Prolactin […]
Hormones secreted by the Anterior Pituitary Gland (Adenohypophysis)
Now, we just said that the Releasing Hormones from the hypothalamus cause the release of hormones in the adenohypophysis. These are the releasing hormones coming from the hypothalamus: Corticotropin Releasing Hormone (CRH causes the release of ACTH) Thyrotropin Releasing Hormone (TRH causes the release of TSH;Thyroid Stimulating Hormone;Thyrotropin) Gonadotropin Releasing Hormone (GnRH releases LH and […]
Endocrinology of the Hypothalamus and Pituitary Gland
The hypothalamus, located just below the Thalamus and the 3rd ventricle, is controlling everything involved with the pituitary gland. The hypothalamus is linked to the pituitary gland by both nerve fiber tracts and a profuse network of capillaries called the hypothalamic-pituitary portal system (aka hypophyseal portal system). Look at the pathway of the blood in […]
Synaptic Transmission by Somatic Motorneurons
We go over how synapses work for activating motor neurons and the neuromuscular junction in detail. Then with that information, we see how it relates to pharmacology and clinical applications.
Conduction of the Action Potential along the Nerve Fiber
Learn how conduction velocity differs between unmyelinated and myelinated cells and a clinical consideration of this: multiple sclerosis.
Information and Action Potentials
See how sound, touch, and light affect action potentials of sensory neurons.