Human Circulatory System

Human Circulatory System:-

The human circulatory system, also known as the cardiovascular system, is a complex network that transports blood, oxygen, and nutrients to cells and organs throughout the body.

Key Components:-

1. Heart:-

 

Pumps blood throughout the body.

2. Blood Vessels:-

    1. Arteries: Carry oxygenated blood away from the heart.

    2. Veins: Return deoxygenated blood to the heart.

    3. Capillaries: Allow for oxygen and nutrient exchange.

Functions:-

1. Oxygenates tissues and organs.

2. Delivers nutrients and hormones.

3. Removes waste products.

Importance:-

The circulatory system is essential for maintaining life, supporting bodily functions, and overall health.

1-  Heart 💜 💜 

The heart is a muscular organ that pumps blood throughout the body. 

It's a vital part of the circulatory system.

Key Functions:-

1. Pumps blood to deliver oxygen and nutrients.

2. Receives deoxygenated blood and sends it to the lungs.

3. Maintains blood circulation and pressure.

Structure:-

1. Four chambers: right and left atria, right and left ventricles

2. Valves regulate blood flow.

Importance:-

The heart is essential for life, supplying oxygen and nutrients to the body's tissues and organs.

2- Blood Vessels:-

Blood vessels are tubes that carry blood throughout the body. 

There are three main types.

1. Arteries:-

1. Carry oxygenated blood away from the heart.

2. Thicker walls to withstand high pressure.

2- Veins:-

1. Return deoxygenated blood to the heart.

2. Thinner walls, often with valves.

3. Capillaries:-

1. Allow for exchange of oxygen, nutrients,          and waste.

2. Thin walls for efficient diffusion.

Functions:-

1. Transport blood, oxygen, and nutrients.

2. Remove waste products.

Importance:-

Blood vessels play a vital role in

 maintaining circulation, 

delivering essential nutrients, and supporting overall health.

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