Endocrine Flashcards
what do fat soluble hormones bind to and how fast
intercellular receptors and respond slowly
T/F
Water soluble hormone travel in blood bound to carries protein
false
T/F
The specificity of hormone is due to it only binding to its matching receptors
true
the master gland in the body is the
Pituitary gland
T/F Both the nervous system and endocrine system control body functions
true
how does the hypothalamus control different body functions by using
Both hormones and action potentials
to cause a response the hormone has to bind to a _____ receptor before
specific receptor
what is the stimulus for glucagon
low blood glucose e.g not eaten in a while
what is the effect of glucagon if have low blood glucose
increase blood glucose
what is the stimulus for insulin
high blood glucose
what is the effect of insulin
decrease blood glucose
e.g. just had a meal
what is the stimulus for TRH,, TSH and thyroid hormone
cold stress and/or exercise
e.g. need thighs for exercise - Thyroid
where is TSH released from
anterior pituitary gland
where is the Thyrois hormone released from
thyroid gland
what is the effect of thyroid hormone
increase cellular metabolism
what is the stimulus for GHRh, growth hormone and IGF-1
sleep and/or exercise
the effect of GHRH is GH being released, where is Growth hormone released from
anterior pituitary gland
what is the effect for growth hormone (x2)
- increase fuel in blood
- release of IGF-1 from liver
what is the effect for IGF-1
increase growth tissue
what is the stimulis for adrenaline
acute (short term) stress and /or exercise
what is the effect of adrenaline
increase heart rate, BP and fuel
what is the stimulus for anti diuretic hormone (ADH)
stress/exercise and increase ECF osmolarity
what is the effect of increase ECF osmolarity or stress/exercise on ADH
Kidney reabsorb more water
what is the stimulus for CRH (Cortisol releasing hormone), ACTH, and cortisol
long term (chonic) stress/ day and night internal rhythms
what is the effect CRH, where is ACTH released from
anterior pituitary gland
What is the effect for ACTH, where is cortisol released from
adrenal gland
what is the effect of cortisol
increase fuel, BP and immunity
when is cortisol levels increase
in the morning e.g. 8am phsl lecture
when do cortisol levels decrease
at night e.g. when your getting ready for bed
which hormone is produced when the blood glucose concentration is above normal
insulin
which is a natural chemical messenger for the adrenergic receptor
norepinephrine
what ways of increasing blood pressure is NOT an effect of antidiuretic hormone
increase in heart rate
which organ produces the hormone that help regulate blood glucose levels
pancreas
what does the alpha cell of the pancreas goes with which hormone they produce
glucagon
T/F water soluble hormones are dissolved in the blood and soluble hormones are transported attached to carrier proteins
TRUE
T/F water soluble hormones are dissolved in the blood and soluble hormones are transported attached to carrier proteins
TRUE
water-soluble hormones, such as proteins and peptide hormone, activate target cells using
the second-messenger system
which anterior pituitary hormone stimulates cortisol production
adrenocorticotropic hormone
why do we need hormones
homeostasis, growth, body defenses, reproduction, sleep
what are hormones
chemical messenges
what are hormones made of
amino acids or cholesterol - eggs
where are hormones made in and released from
endocrine
hormones travel in the blood to distant what type of cells
target cells
hormones can either dissolved directly in plasma or bound to a carrier protein
T/f
True
hormones bind to _____ ____ on target cells to cause what
specific receptors cause response
what happens after hormone has served its purpose
it is removed, broken down and recycled
what number messenger does water soluble hormone need to activate to amplify hormone response
2nd messenger
explain the process of lipid (fat) -soluble action mechanism
lipide-soluble hormone bound to carrier protein, bind to receptor complex enters the nucleus - lead to gene activation e.g. alteration of gene transciption
what is the response to water soluble hormones
fast (ms to mins
what is the time response to lipid-soluble hormones
slow (hours to days)
what is an example of water soluble hormone
adrenalone
what is an example of fat soluble hormone
cortisol
T/F water soluble hormones travel in the blood bound to carrier proteins
false
T/F these specificity of a hormone is due to it only bonding to its matching receptors
true
what systems work together to control body function
Nervous + endocrine
T/F the hypothalamus is a major connection point between the nervous system and the endocrine system begins at
TRUE
hypothalamus to posterior pituitary creates what type of connection
axon connection
action potentials cause hormone release from which pituitary gland
posterior
Potentials = Posterior
hypothalamus to anterior pituitary creates what type of connection
blood vessel connection
release or inhibit release of hormones comes from which pituitary gland
anterior pituitary
Fat soluble hormones bind to
intracellular receptors and respond slowly
what hormones help with metabolism and growth
- GH
- IGF-1
- TH
what stimulates growth hormone releasing hormone
hypothalamus - all the H
what stimulates growth hormone
anterior - blood vessels - need to keep you alive/ growth
what does the liver stimulate the release of which hormone
IGF-1
from the growth hormone and IGF-1 what is stimulated
sleep and exercise
what does GH target which cells
liver, skeletal muscle, adipose
what does IGF-1 target
all body cells
what pituitary gland does the thyroid hormone come from
anterior - large gloide is seen on the anterior side of the body
from the thyoid hormone what is stimulated
cold stress and exercise
Thyrotrophin releasing hormone released from
hypothalmus
thyroid stimulating hormone TSH released form
anterior pituitary
thyroid hormone released form
thyroid gland
thyroid hormone controls ____ ___ so _____ ____ cells contain thyroid hormone receptor
cellular metabolism
most body cells
how is the GIGH stopes
hypothalamus
how is the GH release stop
negative feedback to hypothalamus
how is the IGF-1 stoped
negative feedback to pituitary and hypothalamus
what hormones are involved in the stress response
cortisol and ADH
ACTH comes from which pituitary gland
anterior
cortisol comes from what
adrenal gland
what is stimulated from the cortisol hormone
stress and day- night rhythm
CRH is stimulated from where
hypothalamus
what are the target cells of cortisol
skeletal muscle, adipose, liver
what hormone comes from the posterior pituitary
anti-diuretic hormone (stop you from peeing, pee comes from posterior)
what stimulated the ADH release
dehydration - peeing, stress
what are the target cells of ADH
kidney, hypothalamus, blood vessles
what nervous system is noradrenalin neurotransmitter released by
symathetic nerons
what are both noradrenaline and adrenaline called
catecholamines
what stimulates adrenaline release
stress and exercise
where is the adrenaline released from
medulla of adrenal gland
is oxygen and delivery of blood to cells increased or decrease
increased
is fuel released into the blood to go to the cells increased or decrease
increase
what are adrenergic receptors
receptors that are stimulated by catecholamines
what are the two different types of adrenergic receptors
alpha and beta
what are stimulate drugs that target the adrenergic receptors
adrenergic agonist
what are blocker drugs that target the adrenergic receptors
adrenergic antagonist
what are adrengic agonist call and what do they cause
sympathomimetics, similar effects to catecholamines (adrenaline)
what do adrenergic antagonist do and slow down
block function and slow heart rate
what is released if they is low blood glucose
glucagon
what is released if blood glucose is high
insluin
glucagon are release from which cells
alpha
insulin released by which cells
beta cells
what are target cells of glucagon
liver
what are target cells of insulin
liver, skeletal muscle, adipose