Hormones Flashcards
Estrogen
controls development of female secondary sexual characteristics; secreted from the ovaries
ADH
Secreted by the pituitary; controls the water content of the blood; makes the collecting ducts of nephrons more permeable to water so that more water is reabsorbed
adrenalin
prepares the body for physical activity; released from the adrenal glands; flight or fight
insulin
lowers blood glucose; instructs liver and muscle cells to absorb glucose and store it as glycogen; secreted by the pancreas
glucagon
increases blood glucose levels; instructs liver and muscle cells to convert glycogen to glucose and release it into the blood; secreted by the pancreas
testosterone
controls development of secondary sexual characteristics in males; secreted by the testes
hormone
a chemical messenger; secreted by glands directly into the bloodstream; travels round the body dissolved in blood plasma
target organ/cells
contains receptors on its cells allowing the hormone to bind to the cell membrane and deliver its instructional message
endocrine gland
ductless glands, secreting hormones directly into the blood vessels that pass through the gland
Pancreas
Gland in the abdomen which produces insulin and glucagon
Pituitary gland
Gland in the brain responsible for regulating the endocrine system; releases ADH, growth hormone and gonadotrophins
FSH
Makes sperm and egg