Blood - What Is Blood - Primary Functions Of Blood - Components Of Blood - What Does Blood Do

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In this video I discuss what is blood, the primary functions of blood, and what is blood made of. I also discuss the components of blood, what does blood do, and the functions of blood cells.

Transcript

What is blood?

Well, blood is made up of 4 major components, plasma, red blood cells, white blood cells, and platelets. Plasma makes up about 50 to 55% of blood, and its main contents include, about 90% water, glucose, hormones, enzymes, proteins, minerals and various waste products like carbon dioxide.

Red blood cells make up about 45 to 50% of blood, and their primary function is to carry oxygen to cells and deliver carbon dioxide to lungs. White blood cells make up 1-2% of blood, and they help protect the body against disease and invaders. Platelets make up 1 to 2% of blood, and they are involved in clotting and help prevent bleeding.

Blood has 3 major functions in the body.

1. Transportation
Blood transports oxygen and other various nutrients to cells throughout the body, it also carries waste products and carbon dioxide to the kidneys and lungs for removal from the body.

2. Protection
Blood carries white blood cells which fight infections that threaten to damage the body.

3. Regulation
Blood regulates body temperature, as well as ph balance.

Timestamps
0:00 Components of blood
0:46 Functions of blood

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