STRESS
S
-MEANINGS--
similar
% produce
-
Aroused by aversive (negative) All stressors can
responses
I
·
Stimuli & All Stressors are not bad as stress releases
Must be
perceived into the bloodstream which useful
as
negative glucose is
·
,
and you would avoid if given
the
opportunity [1
are
You must feel like you insulin resistance
Cortisol increases
·
·
I not in control
during chronic stress , raising risks
for type 11 diseases .
HOW DOES THE BODY
REGULATE STRESS ?
This is the HPA axis"
Hypothalamus
releasesI CR
D it uitany I
Adrenal' axis
Hypothalamus
an
Pituitary
Release
-
TWO DIVISIONS OF
THE AUTONOMIC SYSTEMS rate increases
feleasessAdrenal
,
digestive activity.
- PARASYMPATHETIC 7
I Rest p Digest
-
-f
I Uses ACH as
·
a
Neurotransmitter
V
G
digestinatrate bloodpresses I
i
>
- reduces
·
Increases , Cortisol
- SYMPATHETIC Uses norepinephrine
· as a
Neurotransmitter
Fight or Flight · ACH is used by the
1st neuron Only .
·
.
Allostasis means maintaining stability through
change
· Allostatic load is the psychological burden of Lum.
stress on
biological systems
, SKELETAL SYSTEM
BONES => cells that
synthesize
·
Bone is
mostly collagen (soft protein) .
and secrete the
The hard mineral part of bone is made
,
organic components
up of hydroxyapatite .
of the bone matrix
·
99 % of body's calcium is found in
bones and teeth 1 % in blood
,
THE MAIN TYPE OF BONE
Osteoblast
CELLS
/imaurebon aa
Osteogenic Osteocyte
cells 7 (forms bone I maintains bone
(develops tissue)
-
into an matrix)
-
.
osteoblast)
like
·
During growth of long bones arms blengs
chondrocytes (cartilage cells) are
replaced by osteocytes
(bone cells) cells
multinucleated
.
Emm
large
Osteoclasts > D
Osteoporosis is caused by more
(function in osteoclast than osteoblast activity .
reabsorption , the >
-
gym
breakdown of bone
matrix
BONE MARROW -
· Red bone Marrow
·
Scurry is a vitamin C deficiency >
-
produces blood cells
convert
that problems with
leads to ·
yellow bone marrow
->
can
osteoblast tored
collagen synthesis and stores fat
>
-
marrow
differentiation U
· HSC /homopolitic stem cells)
stem cells
> A type of multipotent
-
-
the bone marrow .
are in
>
-
They
S
-MEANINGS--
similar
% produce
-
Aroused by aversive (negative) All stressors can
responses
I
·
Stimuli & All Stressors are not bad as stress releases
Must be
perceived into the bloodstream which useful
as
negative glucose is
·
,
and you would avoid if given
the
opportunity [1
are
You must feel like you insulin resistance
Cortisol increases
·
·
I not in control
during chronic stress , raising risks
for type 11 diseases .
HOW DOES THE BODY
REGULATE STRESS ?
This is the HPA axis"
Hypothalamus
releasesI CR
D it uitany I
Adrenal' axis
Hypothalamus
an
Pituitary
Release
-
TWO DIVISIONS OF
THE AUTONOMIC SYSTEMS rate increases
feleasessAdrenal
,
digestive activity.
- PARASYMPATHETIC 7
I Rest p Digest
-
-f
I Uses ACH as
·
a
Neurotransmitter
V
G
digestinatrate bloodpresses I
i
>
- reduces
·
Increases , Cortisol
- SYMPATHETIC Uses norepinephrine
· as a
Neurotransmitter
Fight or Flight · ACH is used by the
1st neuron Only .
·
.
Allostasis means maintaining stability through
change
· Allostatic load is the psychological burden of Lum.
stress on
biological systems
, SKELETAL SYSTEM
BONES => cells that
synthesize
·
Bone is
mostly collagen (soft protein) .
and secrete the
The hard mineral part of bone is made
,
organic components
up of hydroxyapatite .
of the bone matrix
·
99 % of body's calcium is found in
bones and teeth 1 % in blood
,
THE MAIN TYPE OF BONE
Osteoblast
CELLS
/imaurebon aa
Osteogenic Osteocyte
cells 7 (forms bone I maintains bone
(develops tissue)
-
into an matrix)
-
.
osteoblast)
like
·
During growth of long bones arms blengs
chondrocytes (cartilage cells) are
replaced by osteocytes
(bone cells) cells
multinucleated
.
Emm
large
Osteoclasts > D
Osteoporosis is caused by more
(function in osteoclast than osteoblast activity .
reabsorption , the >
-
gym
breakdown of bone
matrix
BONE MARROW -
· Red bone Marrow
·
Scurry is a vitamin C deficiency >
-
produces blood cells
convert
that problems with
leads to ·
yellow bone marrow
->
can
osteoblast tored
collagen synthesis and stores fat
>
-
marrow
differentiation U
· HSC /homopolitic stem cells)
stem cells
> A type of multipotent
-
-
the bone marrow .
are in
>
-
They
