One of the following is not a function of bones in the human body?

One of the following is not a function of bones in the human body?

مندرجہ ذیل میں سے ایک انسانی جسم میں ہڈیوں کا کام نہیں ہے؟
Explanation

Bones do not secrete hormones, which are produced by glands in the endocrine system.

The parathyroid gland secretes parathyroid hormone.

It regulates calcium levels in the blood and bones.