Endocrine System
, ~
I
endocrine enables response to external changes t to control condition
internally
·
nervous + =
schemical icoordination
↳ a slow ,
prolonged process of
communicating info .
throughout body
↳ of hormones by endocrine
by way secreted
glands
=
blood
slower than nervous
system hormones have to travel
through
·
-
works
together wI nervous
system
·
a ar e s
to
an organic chemical substance that
regulates metabolic functions
·
usually a protein ->
sometimes steroid
:
a fat
secreted by an endocrine gland
·
carried in blood stream to
target organ
·
don't last body- broken down by enzymes
long in
·
target rouga n
·
specific cells that respond to a
given hormone
receptor sites for that organ
↳
has
·
can be
single gland/organ/scattered throughout body
e a co z i re ~glad
to
that hormones which carried in bloodstream to target organs
vascular ,
ductless gland secretes are
·
no ducts - secretions -
carried in bloodstrem
as opposed to exocrine glands secretions carried in duct
=
·
salivary glands liver
↳
eg :
,
!
S
& =
not in IEB
, ~hanzegeig
to
the internal environment in a constant optimal state within despite constant the external environment
The process of
maintaining a narrow
range , changes in
·
internal environment - tissue blood and fluid
->
optimal levels must remained constant :
water , electrolytes ,
CO2
,
02
, glucose ,
temp ,
pH
must be maintained -
body needs to be able to detect change from the set point/norm correct the deviation
·
a
+
↳homeostasis =
ability of an individual to return a particular factor to the set point
negative feedback
to d
A control mechanism
whereby a change from the set point of
any factor is corrected by bringing about a change in the opposite direction .
I
·
excess reduce
-
·
set point et point
. .
8
· deficiency increase
CONSiStS Of
. receptor -> detects a
change from the set point +
sends info .
to control centre
(usually brain)
2 .
Control centre -
processes infor activates correctives mechanisms =
sent to the receptor
.
3 effector -
responds +
corrects change
:
returns conditions to set point
·
not maintained illness/death
, ~
I
endocrine enables response to external changes t to control condition
internally
·
nervous + =
schemical icoordination
↳ a slow ,
prolonged process of
communicating info .
throughout body
↳ of hormones by endocrine
by way secreted
glands
=
blood
slower than nervous
system hormones have to travel
through
·
-
works
together wI nervous
system
·
a ar e s
to
an organic chemical substance that
regulates metabolic functions
·
usually a protein ->
sometimes steroid
:
a fat
secreted by an endocrine gland
·
carried in blood stream to
target organ
·
don't last body- broken down by enzymes
long in
·
target rouga n
·
specific cells that respond to a
given hormone
receptor sites for that organ
↳
has
·
can be
single gland/organ/scattered throughout body
e a co z i re ~glad
to
that hormones which carried in bloodstream to target organs
vascular ,
ductless gland secretes are
·
no ducts - secretions -
carried in bloodstrem
as opposed to exocrine glands secretions carried in duct
=
·
salivary glands liver
↳
eg :
,
!
S
& =
not in IEB
, ~hanzegeig
to
the internal environment in a constant optimal state within despite constant the external environment
The process of
maintaining a narrow
range , changes in
·
internal environment - tissue blood and fluid
->
optimal levels must remained constant :
water , electrolytes ,
CO2
,
02
, glucose ,
temp ,
pH
must be maintained -
body needs to be able to detect change from the set point/norm correct the deviation
·
a
+
↳homeostasis =
ability of an individual to return a particular factor to the set point
negative feedback
to d
A control mechanism
whereby a change from the set point of
any factor is corrected by bringing about a change in the opposite direction .
I
·
excess reduce
-
·
set point et point
. .
8
· deficiency increase
CONSiStS Of
. receptor -> detects a
change from the set point +
sends info .
to control centre
(usually brain)
2 .
Control centre -
processes infor activates correctives mechanisms =
sent to the receptor
.
3 effector -
responds +
corrects change
:
returns conditions to set point
·
not maintained illness/death
