Arteries carry blood away from heart while veins bring blood towards the heart

Pulmonary arteries always carry oxygenated blood while Pulmonary veins always carry deoxygenated blood 

Arteries have thicker and more elastic walls compared to veins in general 

Arteries do not have valves but veins do have valves 

Involuntary actions such as blood pressure, salivation vomiting ete. 

Controlling the regions receiving sensory impulses from receptors 

Controlling the movement of voluntary muscles 

Sensation of hunger or being full 

Estrogen 

Thyroxin 

Insulin

Adrenalin 

Ovary and lacrimal gland  

Ovary and sebaceous gland 

Ovary and pituitary gland 

Prostate and pituitary gland