Which of the following hormones is responsible for regulating calcium levels in the blood by stimulating osteoclast activity?

A Parathyroid hormone (PTH) ✓
B Calcitonin
C Thyroid-stimulating hormone (TSH)
D Growth hormone (GH)

Explanation

PTH is a hormone produced by the parathyroid glands that plays a crucial role in regulating calcium levels in the blood by stimulating osteoclast activity, which breaks down bone tissue and releases calcium into the bloodstream.

Mnemonic

PTH = 'Pulls' Calcium from 'The' Hydroxyapatite

Source

Berne and Levy Physiology
Hormones and Endocrine Markers Endocrinology Parathyroid Glands Medium MEDICAL Confidence: high