Hello

Hormones are chemical messengers that are secreted directly into the blood, which carries them to organs and tissues of the body to exert their functions. There are many types of hormones that act on different aspects of bodily functions and processes. Some of these include: Development and growth.

The hormones stimulating the blood flow in human are the following

• Epinephrine
• Noradrenaline
• Growth hormone
• Thyroid hormones namely T3 and T4
• Androgens for example testosterone

Hope it helps