ENDO Flashcards
Secretion
Autocrine - self
Paracrine - neighbor
Endocrine - distaant
Endocrine
Secreted directly into circulation
Exocrine
Secreted into duct
Endocrine system
Humoral homeostasis
Hypothalamus
Secretes tropic hormones to pituitary
Metabolostat
Anterior pituitary
Endocrine gland
Not transplantable
Receives hormones from hypothalamus at median eminence thru hypothalamic-hypophyseal portal
Dopamine, somatostatin, GH, TSH, FSH, LH
Posterior pituitary
Extension of brain, neural tissue
Thyroid
Develops from pharynx/base of tongue
TRH - TSH - T3, T4
Metabolism
Adrenal
Layers = capsule, cortex = zone G, F, R
CRH - ACTH - glucocorticoids, androgens
Fight or flight, sex hormones
Growth hormone
GHRH - GH - IGF1 from liver
Promote growth
Pancreas
Alpha = glucagon
Beta = insulin
Control blood sugar
Parathyroid
Release PTH to reduce blood sugar