X6 highlights. October 15, 2015: BMW X6M has been launched at a price tag of Rs. 1.60 Crore (ex-showroom Chennai). Under the hood, the car features a 4.4-litre Twin Turbo V8 that produces will 575 PS of power and a humongous torque of 750 Nm and is the most powerful motor ever developed by BMW.
Supply and demand. The coronary arteries regulate the supply of blood to your heart muscle depending on how much oxygen your heart needs at the time, as indicated by: 1  The number of times your heart beats per minute (heart rate). 2  Your blood pressure. 3  The force of your heart's contractions. 4  The thickness of your heart muscle.
this is it summarised hope it helps: The respiratory system oxygenates blood, which is part of the cardiovascular system. The CV system supplies oxygenated blood to the part that make up all three systems, allowing respiration to occur and the cells, tissues and organs to work.he vessels of the cardiovascular system interact with the lungs of the respiratory system. The blood in the vessels picks up oxygen in the lungs and carries the oxygen to every cell in the body.