NUR 406 Exam 2
- endocrine system
Answer -goal is homeostasis -responds to changes in internal/external environment -works with nervous and immune system
- Diurnal
Answer sleep/wake (ex ] cortisol high in morning, low in evening. GH)
- Pulsatile & Cyclic
- classifications of hormones
- steroids
Answer follow a cycle (womens menstrual cycle LH, estrogen, pro- lactin)
Answer
- proteins
- amines
- fatty acids
- Steroids
Answer made from cholesterol. lipid soluble. (ex. glucocorticoids, thyroid hor- mones)
- lipid soluble
Answer 1 / 4
hormones are primarily circulating bound to a carrier
-easily diffuse across plasma membrane
- proteins
Answer made from amino acids. water soluble (ex. insulin, GH)
-bind to protein channels to get into cells
- Amines
Answer composed of proteins and water soluble (ex. catecholamines...epi, norepi, dopamine)
- fatty acids
Answer lipid soluble (ex. prostaglandins)
- aldosterone doesnt need
Answer a carrier to enter a cell
- water-soluble
Answer hormones circulate in free, unbound form
-cannot diffuse across the plasma membrane
- Up-regulation
Answer target cells form more receptors in response to low hormone levels
- down-regulation
Answer target cells lose receptors in response to high hormone levels 2 / 4
- What do hypothalamus hormones do
Answer release or inhibit. they do not stimulate
- hypothalamus hormones
Answer -Corticotropin Releasing Hormone (CRH)
-Thyrotropin Releasing Hormone (TRH) -Gonadotropin Releasing Hormone (GnRH) -Growth Hormone Releasing Hormone (GHRH) -Prolactin Releasing Hormone (PRH)
-Growth Hormone Inhibiting Hormone (GHIH) -Prolactin Inhibiting Hormone (PIH) -Melanocyte Inhibiting Hormone (MIH)
- what is a "tropic" hormone
Answer causing another hormone to release a hormone
- Anterior pituitary hormones
Answer
FLAGTOP FSH
LH
ACTH GH TSH MSH
PH (prolactin)
- Anterior Pituitary Hormone and these
hor- mones
Answer manufactures and releases
- Growth Hormone aka somatotrophin 3 / 4
Answer -protein synthesis and breakdown of fatty acids in adipose tissue
-glucose level in blood -promotes tissue growth and repair (anabolism)
- what is GH target tissue
Answer all body cells
- Thyroid Stimulating Hormone
Answer target
Answer thyroid gland
-stimulates synthesis and release of thyroid hormone
- Adrenocorticotropic hormone (ACTH)
Answer secretion of glucocorticoids, mineralo- corticoids, and androgens Target Answer adrenal cortex
- gonadotropic hormones (FSH and LH)
Answer -stimulates sex hormone secretion
Answer estrogen, testosterone
-reproductive organ growth target
Answer ovaries and testes
- / 4