Transcript Endocrine System

Endocrine System
Endocrine System
• The endocrine system is instrumental in
regulating mood , growth, and
development, tissue function, metabolism,
as well as sexual function and reproductive
processes
• The endocrine and nervous system must
work together in order for the body to
function properly
• ** The endocrine system is in charge of
bodily processes that happen slowly unlike
the nervous system
Endocrine System
• Hormones are chemical regulators
that control bodily processes such as
emotions , growth and sexuality
• ** Hormones travel through the blood
stream
• Glands are units in the body that hold
and release these hormones
• The Endocrine system is the system
that holds all these glands
Pituitary Gland
• This is called the master gland of the
body
• This is controlled by the
hypothalamus in the brain
• The gland has two jobs
• Send messages that start all other glands
• To determine how tall or short someone will
be
• influences our emotions – secretes
endorphins – Seasonal affective
disorders ( SAD)
Pituitary Gland
• The pituitary gland makes the growth
hormone
• Sometimes the action is delayed ,
sometimes it starts too soon
• The tallest known person in history
is 8 feet 11 inches… he died at 22
• The shortest person was 23.3
inches… she died at 19
Thyroid Gland
• Controls our metabolism
• Metabolism is the speed in
which the body operates
• People with overactive thyroids
are not able to sit still
• While people with slow thyroids
tend to be sluggish
Parathyroids
• Regulates the amount of
calcium in the blood ( calcitonin)
produced by the thyroid
Adrenal Gland
• Located in the right and left side
of the body , above the naval
and the back
• This is the gland the emits
adrenaline, that activates your
body for emergencies
Gonads
• These are known as the sex
glands
• They make sperm and eggs
• Male sex hormone is androgen
• Female sex hormone is estrogen
Pineal Gland
• Located in the middle of the
brain, secretes melatonin, helps
regulate sleep
Pancreas
• Produces digestive enzymes
• Produces insulin and glucagon
Problems with the
Endocrine System
• Adrenal insufficiency
• Type I diabetes ( pancreas fails
to produce enough insulin (
juvenile diabetes)
• Type II diabetes ( can’t produce
normal amounts of insulin (
children who are overweight)
Problems with
Endocrine System
• Growth hormone problems ( pituitary
gland)
• Hyperthyroidism ( thyroid hormones
are very high in blood streams (
Grave’s Disease – immune system)
• Hypothyroidism ( thyroid hormone
levels are low in the blood ( leads to
weight gain)