Endocrine and Metabolic

Question 1

What role does magnesium play in the synthesis and secretion of parathyroid hormone (PTH), and what are the consequences of low magnesium levels on PTH release?

Answer 1

Magnesium is crucial for the synthesis and secretion of PTH. Low magnesium levels can lead to impaired PTH release, resulting in hypoparathyroidism-like symptoms despite normal or elevated serum calcium levels.

Question 2

Sensory loss on the dorsal aspect of the 1st and 2nd metacarpals suggest damage to what nerve?

Answer 2

Radial nerve

Question 3

Which hormone upregulates alpha-1 receptors on arterioles?

Answer 3

Cortisol

Question 4

Which hormone directly stimulates aldosterone release?

Answer 4

Angiotensin II

Question 5

Which hormone stimulates pancreatic secretions rich in digestive enzymes?

Answer 5

Cholecystokinin (CCK).

Question 6

The zona glomerulosa releases aldosterone in response to raised __________________.

Answer 6

Angiotensin II, potassium, and ACTH levels.

Question 7

What hormone increases lipolysis?

Answer 7

Cortisol.