The circulatory system, also known as the cardiovascular system, is made up of the heart and blood vessels. It is responsible for transporting blood, nutrients, oxygen, water, and waste products throughout the entire body in mammals. The heart pumps around 1.5 gallons of blood per minute through a network of arteries, veins, and capillaries, ensuring all cells receive nutrients and oxygen and remove waste. Blockages in the coronary arteries, which supply the heart, can lead to coronary heart disease over many years as plaque builds up in the arteries.

1. TRANSPORT IN HUMANS
The circulatory system

2. WHAT IS THE CIRCULATORY
SYSTEM?

3. The Circulatory system is the main transport system in
mammals. It is responsible for transporting materials
throughout the entire body. It transports nutrients, water,
and oxygen to your billions of body cells and carries away
wastes such as carbon dioxide that body cells produce. It
is made up of blood vessels and the heart. Mammals have
double circulatory systems which means that the blood
travels through the heart twice in one complete journey.
It is an amazing highway that travels through your entire
body connecting all your body cells.
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4. WHAT MAKES UP THE
CIRCULATORY SYSTEM

9. THE HEART

10. The Heart is an amazing organ. The heart
beats about 3 BILLION times during an
average lifetime. It is a muscle about the
size of your fist. The heart is located in
the center of your chest slightly to the
left. It's job is to pump your blood and
keep the blood moving throughout your
body. Your heart pumps around 1.5
gallons of blood every minute

12. CORONARY ARTERIES
The Coronary Arteries are the blood vessels that supply
blood to your heart. They branch off of the aorta at its
base. The right coronary artery, the left main coronary,
the left anterior descending, and the left circumflex
artery, are the four major coronary arteries. Blockage of
these arteries is a common cause of angina, heart
disease, heart attacks and heart failure.

14. CORONARY HEART DISEASE
Coronary heart disease (CHD) is a disease in
which a waxy substance called plaque builds
up inside the coronary arteries. When plaque
builds up in the arteries, the condition is
called atherosclerosis. The buildup of plaque
occurs over many years.

16. The Causes of CHD include:
• Smoking
• Diets high in salt, saturated fats and cholesterol
• Obesity
• Stress
• Genes