hormones Flashcards
endocrine glands
groups of cells specialized to secrete hormones
hormones
chemical messengers
how can glands be stimulated?
electrical impulses
change of concentration of a specific substance
target cell
cells with receptors for a certain hormone
target tissue
contains target cells
stimulus to response
stimulus –> receptors –> hormones secreted –> effectors –> response
endocrine system
glands that produce hormones in animals
why do endocrines have a good blood supply?
they need to release hormones into blood quickly
adrenaline source role effect
source: adrenal gland
role: readies body for fight or flight response
effect: increases heart and breathing rate; increase muscle blood flow
verengen (von Blutgefäßen)
to constrict
where are adrenal glands found
above kidneys
hormones secreted by cortex and cause
steroid hormones
- breakdown of proteins and fat into glucose
- increasing blood volume and pressure
- suppressing of immune system
hormones secreted by medulla and cause
catecholamine hormones
- increase in heart and breathing rate
- glycogen –> glucose
- constricting blood vessels
steroid hormones
cortisol & aldosterone
catecholamine hormones
adrenalin & noradrenaline
alpha cells
secrete glucagon
beta cells
secrete insulin
thyroid gland
thyroxin (Schilddrüse)
thyroid gland
thyroxin Schilddrüse
ovaries
Eierstöcke oestrogen
testes
Hoden testosteron
testes
Hoden testosteron
thyroxin
controls the speed at which oxygen and food products react to release energy for the body to use
oestrogen
repairing and thickening of uterus lining
progesterone
maintains lining and prepares for pregnancy
FSH
follicle stimulating hormone
maturation of an egg in a follicle in the ovary
LH
luteinising hormone
stimulates release of egg
Verhütungsmittel
contraceptives
Injections of oestrogen into the body as a contraceptive inhibits what and where
inhibits Release of FSH in the pituitary gland
another name for ADH
vasopressin
What is the role of the brain in blood glucose regulation?
none, the pancreas detects an increase/ decrease in the blood glucose level and reacts accordingly