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Chapter 16: The Endocrine System - Pituitary Gland (Hypophysis): Posterior Pituitary - ADH (Antidiuretic Hormone)
Terms in this set (20)
Antidiuretic Hormone is made in the ________ (Supraoptic or Suprachiasmatic) Nucleus of the ________ (Pituitary or Hypothalamus).
Antidiuretic Hormone is made in the Supraoptic Nucleus of the Hypothalamus.
From where is ADH released from within the Hypothalamus?
The Posterior Pituitary
T or F: Only ADH is an Amino Acid based hormone, and Oxytocin is a Steroid based hormone.
- Both ADH and Oxytocin are Amino Acid based hormones.
What is the Supraoptic Nucleus named after, and why?
The Suprachiasma because it is located superiorly
Antidiuretic Hormone binds to how many receptors?
Two types of receptors
Because Antidiuretic Hormone binds to two different receptors, there are two major effects that are a result. Name both effects:
1) ________ (Organ?) make ________ (more or less) Urine.
2) Vaso________ (-constriction or -dilation)
1) Kidneys make less Urine
Name three main causes of ADH release:
1) ________ (High or Low) Blood Osmolarity
2) ________ (High or Low) Blood Volume
1) High Blood Osmolarity
2) Low Blood Volume
Why does High Blood Osmolarity cause ADH release?
Blood is too concentrated
T or F: High Blood Osmolarity causes ADH release because the body needs more water in the blood.
Why does Low Blood Volume cause ADH release?
The body wants to increase water in the blood
Why does Nicotine cause ADH release?
Increase in fluid retention
What is the direct effect of smoking increasing fluid retention?
Blood pressure change
Diabetes ________ (Melitis or Insipidus) is caused by a lack of ADH.
Diabetes Insipidus is caused by a lack of ADH.
What is a symptom that is commonly associated with Diabetes Insipidus?
T or F: Polyuria is a lack of and concentration in Urine.
- Polyuria is an excess of and dilution in Urine.
List three examples of causes, basic symptoms, and/or treatment options for Diabetes Insipidus:
1) ________ trauma damages ________ (pituitary or adrenal) or ________ (hypophyseal or supraoptic) nucelus.
2) Patients have ________ (extreme or mild) thirst and ________ (decreased or increased) urination (lack of ADH produced).
3) Treatment with ________ (type of drug?) which is the synthetic form of ADH.
1) Head trauma damages pituitary or supraoptic nucleus.
2) Patients have extreme thirst and increased urination (lack of ADH produced).
3) Treatment with Desmopressin, which is the synthetic form of ADH.
Ethanol ________ (inhibits or stimulates) the release of Antidiuretic Hormone.
Ethanol inhibits the release of Antidiuretic Hormone.
T or F: Ethanol has the same effect as Nicotine.
- Ethanol has the opposite effect of Nicotine
What is the effect of the inhibition of the release of ADH?
Blocks voltage-gated calcium channels on neurons
ADH dramatically ________ (increases or decreases) Urine production.
ADH dramatically increases Urine production.
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