Unit N Review #3 KEY
1.
The Adrenal Gland.
2.
The Adrenal glands are on top of the Kidney.
3.
It is a hormone.
4.
EPINEPHRINE.
5.
The Adrenal Medulla (region)
6.
Adrenalin/Epinephrine causes the following:
(basically the same things that the sympathetic
neurotransmitter "Norepinephrine" did)
- Less stimulation to digestive tract.
- Blood shunting from gut to skeletal muscle.
- Increase in Heart Rate
- Increase in Blood Pressure
- Opening up of airways
- Dilation of pupils
- Constriction of blood vessels
- Stimulates liver to free up Glucose
Neuroendocrine
1.
The endocrine system consist of numerous glands
that produce and secrete hormones into the
bloodstream. These hormones trigger actions
around the body.
2.
The Hypothalamus has a neural (nerve tracts) and
portal link (blood vessels) between the brain and
the pituitary gland. So it can direct the pituitary
gland to release certain hormones.
3.
Anterior (front) Lobe and Posterior (back) Lobe.
4.
The Anterior Lobe
5.
The Hypothalamus reads blood for hormone
levels, solutes, pH temperature, pressure,
metabolic wastes etc.
6.
The Hypothalamus controls the Anterior Pituitary
by putting out __(specific)__ Release Hormones or
putting out _(specific)_ Release-Inhibiting Hormones.
The release hormones will stimulate production
of a given hormone, the inhibiting hormone will
shut down the production of a given hormone.
Example: Hypothalamus makes and releases
"Thyroid Release Hormone". This hormone
travels to Anterior Pituitary to turn those cells
on to start making "Thyroid Stimulating
Hormone". Thyroid Stimulating Hormone then
travels through blood stream to turn on the
Thyroid gland causing it to produce and release
more "Thyroid Hormone" (T4 and T3)
7.
The hypothalamus controls the Posterior
Pituitary by making the given hormone then
sending it down to the Post. Pit. and storing it
there, then triggering its release when necessary.
8.
A total of six key hormones are put out by the
Anterior Pit: Red and Green are ones we will
need to know.
- Growth Hormone (GH)
- Thyroid Stimulating Hormone (TSH) – Already
Studied
- Gonadotropic Hormones – 1) LH and 2) FSH –
Reproductive Hormones
- Adrenocorticotropic Hormone (ACTH)
- Prolactin (PRL)
9.
Two hormones : ADH and Oxytocin – Neither are
actually made in the Post Pit.
10. Endocrine glands make hormones and then leak
them directly into the blood and they then
circulate around the blood.
Practice Quiz:
1.
A – Hypothalamus makes ADH and after ADH is
released from the Posterior Pituitary it will cause
increased reabsorption from the collecting ducts.
2.
A – Again the hypothalamus makes ADH which
acts on reabsorption at the Collecting duct.
3.
B – it will put out Thyroid Release Hormone
which will trigger Anterior Lobe to produce and
release Thyroid Stimulating Hormone. TSH will
then target Thyroid gland to produce and release
Thryoid Hormone (Thyroxin).
4.
B – ADH is made in the Hypothalamus and then
stored in Posterior Pituitary.
5.
B – Epinephrine (Adrenalin) is the Hormone.