Ch15: endocrine system Flashcards
Adam’s apple
protrusion in the neck caused by a fold of thyroid cartilage
adenohypophysis
anterior lobe of the pituitary gland
adrenal cortex
outer portion of the adrenal gland; helps control metabolism, inflammations, sodium and potassium retention, and effects of stress
adrenal gland
one of 2 glands, each of which is situated on top of each kidney
adrenaline
epinephrine; secreted by adrenal medulla
adrenal medulla
inner portion of adrenal glands; releases large quantities of hormones during stress
adrenocorticotropic hormone (ACTH)
hormone secreted by anterior pituitary; involved in the control of the adrenal cortex
aldosterone
hormone secreted by adrenal cortex; mineralocorticoid
alpha cells
specialized cells that produce glucagon in the pancreas
androgen
any male hormone, such as testosterone
antidiuretic hormone (ADH)
posterior pituitary hormone that increases water reabsorption
beta cells
specialized cells that produce insulin in the pancreas
calcitonin
hormone secreted by the thyroid gland and other endocrine glands; helps control blood calcium levels
catecholamines
hormones, such as epinephrine, released in response to stress
corticosteroids
steroids produced by the adrenal cortex
cortisol
hydrocortisone
ductless gland
endocrine gland
electrolyte
any substance that conducts electricity and is decomposed by it
endocrine gland
gland that secretes substances into the blood stream instead of into ducts
epinephrine
hormone released by the adrenal medulla in response to stress adrenaline
exocrine gland
any gland that releases substances through ducts to a specific
follicle-stimulating hormone (FSH)
hormone released by the anterior pituitary to aid in production of ova and sperm
gland
any organized mass of tissue secreting or excreting substances
glucagon
hormone released by the pancreas to increase blood sugar
glucocorticoids
hormones released by the adrenal cortex
glycogen
converted glucose stored in the liver for future use
growth hormone (GH)
hormone released by the anterior pituitary for stimulating growth
hormone
substance secreted by glands and carried in the bloodstream to various parts of the body
hypophysis
pituitary gland
hypothalamus
gland in the nervous system that releases hormones to aid in regulating pituitary hormones
inhibiting factor
substances in a hormone that prevents the secretion of other hormones
insulin
substance released by the pancreas to lower blood sugar
islets of Langerhans
specialized cells in the pancreas that release insulin and glucagon
isthmus
narrow band of tissue connecting the 2 lobes of the thyroid gland
luteinizing hormone (LH)
hormone released to aid in maturation of ova and ovulation in the female; and aids in the secretion of testosterone in males
melanocyte-stimulating hormone (MSH)
hormone released by the pituitary gland; aids in development of melanin pigment of the skin
melatonin
hormone released by the pineal gland; affects sexual function and sleep patterns
metabolism
the chemical changes in cells that provide energy for vital processes and activities and through which new material is assimilated
mineralocorticoid
steroid secreted by adrenal cortex
neurohypophysis
posterior lobe of pituitary gland
norepinephrine
hormone secreted by adrenal medulla
ovary
one of 2 female reproductive glands that secrete hormones in the endocrine system
oxytocin
hormone released by the posterior pituitary gland to aid in uterine contractions and lactation
pancreas
gland of both the endocrine system (blood sugar control) and the digestive system (as an exocrine gland)
parathormone (PTH)
parathyroid hormone
parathyroid gland
one of 4 glands located adjacent to the thyroid gland on its dorsal surface that help maintain levels of blood calcium
parathyroid hormone (PTH)
hormone released by the parathyroid glands to help raise blood calcium levels
pineal gland
gland located above pituitary gland; secretes melatonin
pituitary gland
major endocrine gland; secretes hormones essential to metabolic functions
receptor
part of a target cells with properties compatible with a particular substance (hormone)