, Endocrine System
Chemical Coordination a slow
prolonged process of communicating information throughout the
body using
·
:
,
hor mones
·
hormone : an organic chemical messenger (usually a protein or steroid) secreted
by an endocrine gland directly
into the bloodstream to a specific target organ
endocrine
gland ductless glands that secrete hormones
directly into the bloodstream
·
:
that ducts
exocrine gland :
glands release secretions through to a
body cavity or exterior
* pancreas does both :
↳ endocrine a secretion
insulin
glucagon
:
intestine duct
Secreting pancreatic juice by pancreatic
4 small
exocrine :
to
Endocrine Glands
1 .
Hypothalamus
position base of brain above
pituitary gland
:
,
·
Hormone : Produces Anti-diuretic hormone (ADH) ,
which is transported and stored in posterior pituitary gland
Function releasing factors
pituitary gland
: Controls autonomic nervous
system a stimulates anterior via
.
2 Pituitary Gland/Hypophysis
·
position :
base of brain
·
divided i n to anterior (produces hormones) & posterior lobe (releases ADH)
Anterior Hormones :
Growth hormone/GHISTH :
Promotes skeletal a muscular growth by stimulating protein synthesis
↳>
hypersecretion (children)
:
gigantism (sheletal over development
↳
hypersecretion (adults) :
Acromegaly Cenlargement of hands
,
feet a face
hyposecretion (children) Pituitary
↳ :
dwarfism (short proportional stature)
Thyroid stimulating hormonel TSH :
stimulates thyroid to release thyroxin
Follicle Stimulating hormone /FSH Stimulates oogenesis (females) a spermatogenesis (male
:
·
Lutenising hormone/LH :
stimulates ovulationm menstrual
cycle
·
Prolactin : stimulates milk production in
mammary glands
·
ACTH :
stimulates adrenal cortex to release cortisone I aldosterone
·
ICSH : stimulates testes to secrete testoster one
Posterior Hormones :
·
ADI :
promotes water reabsorption in Kidney tubules to conserve water
↳
osmolarity ↑ in blood is detected by osmoreceptors
↳ Lack of ADH-diabetes insipidus (large volumes of dilute wine)
Chemical Coordination a slow
prolonged process of communicating information throughout the
body using
·
:
,
hor mones
·
hormone : an organic chemical messenger (usually a protein or steroid) secreted
by an endocrine gland directly
into the bloodstream to a specific target organ
endocrine
gland ductless glands that secrete hormones
directly into the bloodstream
·
:
that ducts
exocrine gland :
glands release secretions through to a
body cavity or exterior
* pancreas does both :
↳ endocrine a secretion
insulin
glucagon
:
intestine duct
Secreting pancreatic juice by pancreatic
4 small
exocrine :
to
Endocrine Glands
1 .
Hypothalamus
position base of brain above
pituitary gland
:
,
·
Hormone : Produces Anti-diuretic hormone (ADH) ,
which is transported and stored in posterior pituitary gland
Function releasing factors
pituitary gland
: Controls autonomic nervous
system a stimulates anterior via
.
2 Pituitary Gland/Hypophysis
·
position :
base of brain
·
divided i n to anterior (produces hormones) & posterior lobe (releases ADH)
Anterior Hormones :
Growth hormone/GHISTH :
Promotes skeletal a muscular growth by stimulating protein synthesis
↳>
hypersecretion (children)
:
gigantism (sheletal over development
↳
hypersecretion (adults) :
Acromegaly Cenlargement of hands
,
feet a face
hyposecretion (children) Pituitary
↳ :
dwarfism (short proportional stature)
Thyroid stimulating hormonel TSH :
stimulates thyroid to release thyroxin
Follicle Stimulating hormone /FSH Stimulates oogenesis (females) a spermatogenesis (male
:
·
Lutenising hormone/LH :
stimulates ovulationm menstrual
cycle
·
Prolactin : stimulates milk production in
mammary glands
·
ACTH :
stimulates adrenal cortex to release cortisone I aldosterone
·
ICSH : stimulates testes to secrete testoster one
Posterior Hormones :
·
ADI :
promotes water reabsorption in Kidney tubules to conserve water
↳
osmolarity ↑ in blood is detected by osmoreceptors
↳ Lack of ADH-diabetes insipidus (large volumes of dilute wine)
