Final answer:
The hormone that promotes bone growth at the epiphyseal plate is human growth hormone (GH), with sex hormones and thyroxine also playing a role. Calcitriol stimulates the absorption of calcium and phosphate for bone growth. option(b)
Step-by-step explanation:
The hormone that promotes bone growth at the epiphyseal plate is human growth hormone (GH).
During puberty, the sex hormones estrogen and testosterone also play a role in promoting osteoblastic activity and production of bone matrix. Additionally, thyroid hormone (thyroxine) promotes bone growth and stimulates the synthesis of bone matrix.
Calcitriol, the active form of vitamin D, stimulates the absorption of calcium and phosphate from the digestive tract to support bone growth.