Cardiovascular relates to blood. So, I'm guessing it interacts when a female's egg is not met by a sperm, and the female releases blood.
-ok that's part of it but more importantly the creation of both egg and sperm require the energy that they get from blood. for an erection the penis must fill with blood. and once an egg implants itself it takes in blood for nuritment for the baby.
The immune system helps assure that diseases and viruses do not reach the cardiovascular system which includes the heart and blood vessels. :]
they chill...
The cardiovascular system is the means of transportation for antibodies. It's essential to the lymphatic system.
Both the lymphatic system and the cardiovascular system transport the antibodies of the immune system.
blood vesels????
autonomic system
The brain interacts with the nervous system (including sensory organs), endocrine system (via hormones), immune system (through neuroimmune interactions), and the cardiovascular system (regulating blood flow and pressure).
separate vessels exist for lymph (immune) and blood (receives oxygen from lungs)
The cardiovascular system transports the oxygen brought in by the respiratory system to other areas of the body.
Although the cardiovascular system interacts with all other systems, the one it more closely interacts with is the respiratory (pulmonary) system.
They help the process of movement happen in a smoother manner.
The spleen produces blood cells, and forms part of the immune system.