Hypothalamic Hormones that regulate the Anterior Pituitary
Thyrotropin-releasing hormone (TRH)
Promotes secretion of thyroid stimulating hormone (TSH) and prolactin (PRL)
Corticotropin-releasing hormone (CRH)
Gonadotropin-releasing hormone (GnRH)
Growth Hormone- releasing hormone (GHRH)
Promotes secretion of growth hormone (hGH)
Inhibitors
Prolactin- releasing hormone (PIH)
Somatostatin
Inhibits secretion of the growth hormone (GH) and thyroid- stimulating hormone (TSH)
Inhibits secretion of prolactin (PRL)
Promotes secretion of follicle- stimulating hormone (FSH) and luteinizing hormone (ZH)
Promotes secretion of adrenocorticotropic hormone (ACTH)
Follicle- stimulating hormone (FSH)
Luteinizing hormone (ZH)
Target Organ/ tissue FEMALE: ovaries
Targets Organ/ tissue MALE: testes
Target Organ/ tissue MALE: testes
Sperm production
Growth of ovarian follicles and secretion of estrogen
Targets Organ/ tissue FEMALE: ovaries
Testosterone secretion
Ovulation, maintenance of corpus luteum, prepares mammary glands, prepares uterus for implantation
Growth Hormone (GH)
Target Organ/tissue: Liver, Bone, Cartilage, Muscle, Fat
Wide spread tissue growth
Adrenocorticotropic hormone (ACTH)
Target Organ/ tissue: Adrenal Cortex
Growth of adrenal cortex, secretion of glucocorticoids (cortisol)
Thyroid stimulating hormone (TSH)
Prolactin (PRL)
Target Organ/ tissue: Thyroid Gland
Target Organ/ tissue: Mammary Hormone
Prolactin (PRL)
Growth hormone (GH)
Thyroid- stimulating hormone (TSH)
Target Organ/ tissue:Liver, Bone, Cartilage, Muscle, Fat
Target Organ/ tissue: Thyroid Gland
Target Organ/ tissue: Mammary Gland
Hormones secreted by the Anterior Pituitary Gland to various parts of the body
Wide spread growth
Growth of thyroid, secretion of thyroid hormone
Growth of thyroid, secretion of thyroid hormone
milk synthesis, Creation of milk
Milk Synthesis
Impulse sent from the Hypothalamus to the posterior Pituitary
Hormones secreted by the Posterior Pituitary Gland
Antidiuretic Hormone (ADH)
Target Organ: Kidneys
Oxytocin (OT)
Target Organs/ Tissue: Uterus, and Mammary Glands
Labor contractions, milk release: possibly involved in ejaculation, sperm transport, sexual affection, and mother- infant bonding
With excess production this will turn off the production of GnRH in the hypothalamus, and the pituitary
With excess production this will turn off the production of ACTH in the hypothalamus, and the pituitary
T3, T4
IGF: insulinlike growth factor
Water Retention