Topic
Cardiovascular system
5 questions tagged Cardiovascular system — spanning every one of the seven Ws.
why
Why does our heart beat faster when we are scared?
Fear activates the sympathetic nervous system, which prepares the body for action. Adrenaline makes the heart pump faster and harder.
Human bodyCardiovascular system
which
Which is the largest chamber of the human heart?
The left ventricle is the largest and strongest chamber of the human heart. It pumps oxygen-rich blood to the entire body.
Human bodyCardiovascular system
which
Which human organ is the fastest at pumping blood continuously?
The heart is the body’s nonstop blood pump, beating around 100,000 times a day on average. It can pump about 7,000 to 8,000 litres of blood daily at rest and during normal activity.
Human biologyCardiovascular system
which
Which human blood vessel is the largest?
The aorta is the largest blood vessel in the human body. It carries oxygen-rich blood from the heart to the rest of the body.
Human BiologyCardiovascular System
whose
Whose name is attached to the network of blood vessels that supplies the heart muscle itself?
The coronary circulation is the heart’s own blood supply, delivered through the coronary arteries.
Human bodyCardiovascular system