The ______ system involves membrane depolarization and transmission of a signal from synapses.
In the nervous system, communication is ____, but effects on target cells/organs are ____.
The ______ system involves hormones that act by binding to specific receptors on target cells.
In the endocrine system, communication is ______, but the effects on target cells/organs are of _____ duration.
The release of ______ stimuli is controlled by monitoring levels of ions and nutrients in blood and body fluids.
The release of _____ stimuli is stimulated by nerve signals.
The release of _____ stimuli is caused by a hormone secreted into the bloodstream by another endocrine organ or cell.
The release of PTH stimulated by low serum calcium levels is an example of _____ stimuli.
The release of epinephrine from the adrenal gland in response to a signal from sympathetic nerve fibers is an example of _____ stimuli.
The release of thyroid hormone stimulated by the release of TSH from the pituitary gland is an example of _____ stimuli.
____ glands are made up of epithelioid cells arranged as cords/follicles and some as isolated individual cells and is well vascularized.
What is this?
What are the direct targets of hypothalamic hormones?
Anterior pituitary gland, kidney and uterus (releasing ADH & oxytocin in the posterior pituitary gland), and adrenal medulla (via sympathetic innervation)
What do hypothalamic hormones indirectly influence?
Thyroid gland, adrenal cortex, mammary gland, gonads, and bones.
The anterior pituitary is formed by ____ ____.
The ______ forms the posterior pituitary.
___ ectoderm forms the anterior pituitary whereas the ____ ectoderm forms the posterior pituitary.
The anterior pituitary constitues 80% of the gland and is comprised of ______ _____ cells controlled by neurohormones released from the ______.
glandular epithelial; hypothalamus
The posterior pituitary is comprised of ____ from the _____ and support cells.
The axons from the hypothalamus carry ____ and _____ for storage and release in the posterior pituitary.
The _____ pituitary consist of pars tuberalis, pars intermedia, and pars distalis.
The _____ pituitary consists of the infundibular stalk and pars nervosa.
Somatotropic cells secrete ____ hormone.
Thyrotropic cells secrete ____.
Corticotropic cells secrete ____ and ____.
ACTH and MSH (melanocyte-stimulating hormone)
Gonadotropic cells secrete ___ and ___.
FSH and LH
Mammotropic cells secrete ___.
Somatotrophs and mammotrophs are ____.
Corticotrophs, thyrotrophs, and gonadotrophs are _____.