advanced pathophysiology NR 507 final exam Questions & Correct Answers/ Graded A+
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Course
NR 507
Institution
NR 507
Fat Soluble Hormones
: Steroids
Water Soluble Hormones
: Need 2nd Messenger to transport across phospholipid membranes
Pituitary Hormones
: TSH, GH, ACTH, FSH, LH, Oxytocin, ADH, Melanocyte Stimulating Hormone
Anterior Pituitary
: Acct for 75% of total weight of pituitary gland. Three region...
1 advanced pathophysiology NR 507 final exam Questions & Correct Answers/ Graded A+ Fat Soluble Hormones 🗸🗸: Steroids Water Soluble Hormones 🗸🗸: Need 2nd Messenger to transport across phospholipid membranes Pituitary Hormones 🗸🗸: TSH, GH, ACTH, FSH, LH, Oxytocin, ADH, Melanocyte Stimulating Hormone Anterior Pituitary 🗸🗸: Acct for 75% of total weight of pituitary gland. Three regions, pars distalis, parts tuberalis, and pars intermedia. Pars distalis is major component of Anterior Pituitary and source of Anterior Pituitary Hor mones. Posterior Pituitary (neurohypophysis) 🗸🗸: Arises from 3rd ventricle of brain, consists of three parts, median eminence, pituitary stalk, and infundibular process (pars nervosa or neural tube). Median eminence is composed mainly of nerve endings of axons that arise primarily from ventral hypothalamus. 2 Hypothalamic releasing Hormones in Posterior pituitary's median eminence. 🗸🗸: Includes 10 hypothalamic releasing hormones and neurotransmitters such as dopamine, norepinephrine, serotonin, acetylcholine, and histamine. Pituitary stalk 🗸🗸: contains axons of neurons that originate in the supraoptic and paraventricular nuclei of th e hypothalamus. Hormones of posterior pituitary 🗸🗸: ADH, and Oxytocin (Peptide Hormones) ADH (antidiuretic Hormone) 🗸🗸: Major homeostatic function of posterior pituitary is control of plasma osmolality, as regulated by ADH Hypothalamic hormones an d target tissues (Hypophysiotropic hormones) 🗸🗸: HORMONES: Thyrotropin Releasing Hormone (TRH), Gonadotropoin -releasing hormone (GnRH), Somatostatin, Growth hormone -releasing hormone (GHRH), corticotropin -releasing hormone (CRH), Substance P, Dopamine, Prolactin -releasing factor. 3 TARGET Tissue: Anterior Pituitary Somatostatin 🗸🗸: Inhibits release of growth hormone and TSH Gonadotropoin -releasing hormone 🗸🗸: Stimulates release of FSH and LH Dopamine 🗸🗸: Inhibits synthesis and secretion of prol actin Prolactin -releasing factor (PRF) 🗸🗸: Stimulate secretion of prolactin Tropic Hormones of Anterior Pituitary and their function 🗸🗸: ACTH, Melanocyte -stimulating Hormone (MSH, Somatotropic hormones, GH, prolactin, LH, TSH, FSH, glycoprotein hormones Adrenocorticotropic hormone (ACTH) 🗸🗸: SECRETORY CELL TYPE: Corticotropic 4 TARGET ORGANS: Adrenal Gland (cortex) FUNCTIONS: Increased st eroidogenesis (cortisol, and androgenic hormones Prolactin, 🗸🗸: Milk production TSH 🗸🗸: Increased production and secretion of thyroid hormone Luteinizing Hormone (LH) 🗸🗸: Ovulation, progesterone production (in glanulosa cells) Follicle Stimula ting Hormone (FSH) 🗸🗸: Follicle maturation, estrogen production (In Women: Granulosa Cells, In Men: Sertoli Cells) B-Lipotropin 🗸🗸: Fat breakdown and release of fatty acids (Corticotropic, from Adipose Cells) B-Endorphins
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