The endocrine system Flashcards
the endocrine system works with what other system to regulate all aspects of body function?
the nervous system
what is the functional unit that the endocrine system uses?
hormones
What kind of signal does the endocrine system use?
chemical (hormones)
What are the functional units of the nervous system?
neurones
what kind of signal does the nervous system use?
electrical (chemical at the synapse)
where are hormones secreted from?
various glands and some organs throughout the body
how are hormones carried through the body? what do they alter?
through the blood stream
alter the activity of specific organs
what are the effectors (targets) of the nervous system? (3)
muscles, glands and other neurones
What are the effectors (targets) of hormones?
specific organs or tissues
what does the antidiuretic hormone target? to do what?
the kidneys
to help regulate the amount of water in the blood
does the nervous system have a fast or slow response?
a very rapid response
does the hormonal (endocrine) system have a fast or slow response?
slower than nervous system but can be rapid (eg adrenaline)
How would you describe the duration of response in the nervous system?
short (until the nerve impulse ceases)
how would you describe the duration of response in the hormonal (endocrine) system?
long (until hormone is broken down)
what breaks down hormones when they are no longer needed?
the liver
hormones are ___________ substances produced by a ______
chemical
gland
what is the main gland in the body?
the pituitary gland
hormones are carried in the _______ ______ and ___________ into the blood _______. they then travel to specific ________ or _______ where they ______ the activity of that ________.
blood stream
dissolve
plasma
organs
tissues
alter
organ
one of the functions of the hormones is homeostasis, what do hormones maintain?
a constant balanced internal environment
One of the functions of hormones is metabolism, how does it do this?
by controlling the body’s energy balance
hormones play a ___ role in the __________ and influence of ___________.
key
development
behaviour
how do hormones affect mood?
oxytocin among other hormones control many aspects of mood and influences our emotional responses
how do hormones influences cognitive function?
oestrogen, progesterone and testosterone play important roles in brain health, including memory and overall cognitive function
in women, what does oestrogen help with regarding cognitive function? (3)
concentration, word recall and processing