ENDOCRINE CH. 49 REVISION
Endocrine glands secrete... - hormones directly into the bloodstream.
Hormones are... - chemicals that accelerate or slow physiologic processes.
Endocrine glands help regulate... - -metabolism
-growth
-fluid and electrolyte balance
-reproductive processes
-sleep and wake cycles
The pituitary gland is divided into three lobes called... - -anterior lobe/adenohypophysis
-intermediate lobe/adenohypophysis
-posterior lobe/neurohypophysis
The pituitary gland is nicknamed... - the "master gland" (although the hypothalamus
gland regulates the pituitary gland)
_____ (GnRH) triggers sexual development at the onset of puberty. - gonadotropin-
releasing hormone
_____ inhibits GHRH and TSH and also blocks secretion of several gastrointestinal
hormones, lowers blood flow within the intestine, suppresses release if insulin and
glucagon. - somatostatin
Somatostatin and octreotide (Sandostatin) are used to reduce _____ _____. -
gastrointestinal bleeding.
A _____ _____ is a mechanism that turns hormone production off and on to keep
concentrations of hormones within a stable range at all times. - feedback loop
Where is the thyroid gland located? - Lower neck anterior to the trachea.
Thyroid gland is divided into two lateral lobes joined by a band of tissue called _____. -
isthmus
What two hormones regulate the body's metabolic rate? -
-thyroxine/T4/tetraiodothyronine
-T/triiodothyronine
_____ inhibits the release of calcium from bone into the extracellular fluid. - calcitonin
The _____ glands are four small, bean-shaped bodies embedded within the later lobes
of the thyroid and secrete parathormone. - parathyroid
