Which hormone is responsible for regulating calcium homeostasis in the body by increasing osteoclast activity?

A Parathyroid hormone (PTH) ✓
B Calcitonin
C Vitamin D
D Oxytocin

Explanation

Parathyroid hormone (PTH) plays a crucial role in regulating calcium homeostasis by increasing osteoclast activity, which leads to an increase in blood calcium levels.

Mnemonic

PTH = Parathyroid Helper, Increases calcium

Source

Berne and Levy Physiology
Hormones and Endocrine Markers Endocrinology Parathyroid Hormone Easy MEDICAL Confidence: high