Blood Vessels

Blood flows through a closed system. Blood always travels through blood vessels except when it enters the chambers of the heart. When blood is pumped from the heart, it travels through five types of blood vessels – arteries, arterioles, capillaries, venules, and finally veins. Arteries are the first type of blood vessels that blood enters after being pumped out of the heart, and when the … Continue reading Blood Vessels

Cardiovascular System

The cardiovascular system is the system of blood circulation. The term cardiovascular, can be broken down into “cardio”, which means pertaining to the heart and “vascular”, which refers to the vessels of our body that contain fluid, specifically blood. Therefore, the cardiovascular system involves the heart, blood, the arteries, the veins, and the capillaries of the human body.  It is crucial to understand that all … Continue reading Cardiovascular System