Question

What 2 factors increase blood flow

Answer 1

The two factor that increases blood flow are given below:

1. Physical Activity : When we engage in physical activity, our muscles require more oxygen and nutrients to work properly. The body responds to this demand by increasing blood flow to the muscles, which helps deliver more oxygen and nutrients to them.

2. Body temperature : When our body temperature rises, such as during a fever or when we are in a warm environment, our blood vessels expand to allow more blood to flow to the skin's surface. This helps to dissipate heat and cool down the body.

Answer 2

Vasodilation is the widening of blood vessels, which allows for increased blood flow. This occurs when the smooth muscles in the walls of the blood vessels relax, allowing the vessels to expand. Increased cardiac output refers to the amount of blood pumped by the heart per minute. When the heart pumps more blood, it increases the volume of blood flowing through the vessels, which also increases blood flow. Both of these factors can increase blood flow to various parts of the body, including muscles during exercise or organs during times of increased demand.