1b Disorders of Appetite Flashcards

1
Q

What is the definition of polydipsia?

A

Excessive thirst or excess drinking

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2
Q

What is the definition of Adipsia?

A

Inappropriate lack of thirst

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3
Q

What is anorexia?

A

Lack or loss of appetite

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4
Q

What is obesity?

A

Abnormal or excessive fat accumulation which presents a risk to health

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5
Q

Which hormone is responsible for the regulation of osmolarity?

A

ADH

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6
Q

If plasma concentration of ADH is low, will there be diuresis or anti-diuresis?

A

Low ADH = dilute urine = alot of water loss = diuresis

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7
Q

Which regions are sensory osmoreceptors found in the hypothalamus?

A

Supraoptic nuclei and paraventricular nuclei

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8
Q

What are some causes of primary polydipsia?

A

Mental illness - psychogenic polydipsia
Brain injury
organic brain damage

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9
Q

What is secondary polydipsia?

A

Medical issues which disrupt any step in osmoregulation or alter ADH

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10
Q

Which medical conditions can cause secondary polydipsia?

A

Diabetes insipidus
Kidney Failure
Conn’s syndrome
Addison’s disease
Sickle Cell Anaemia

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