11- Overview of Blood Vessels: Arteries, Veins, Capillaries

What are the three major categories of blood vessels?

Arteries, veins, and capillaries.

What is the primary function of arteries?

To carry blood away from the heart toward the periphery.

How can you remember that arteries carry blood away from the heart?

By associating 'A for Arteries, A for Away'.

What type of blood do arteries typically carry?

Oxygen-rich blood, except for pulmonary and umbilical arteries which carry oxygen-poor blood.

What color are arteries typically represented in diagrams?

Red.

What is the primary function of veins?

To carry blood towards the heart.

What type of blood do veins typically carry?

Oxygen-poor blood, except for pulmonary and umbilical veins which carry oxygen-rich blood.

What color are veins typically represented in diagrams?

Blue.

What are capillaries?

The smallest of the blood vessels that connect arteries to veins.

Where are capillaries typically found?

Within internal organs such as the liver, digestive tract, and kidneys.

What is the process called that involves the exchange of materials between blood and cells?

Capillary exchange.

What is unique about the walls of capillaries?

They are very thin, allowing for material exchange.

What role do capillaries play in the circulatory system?

They serve as a bridge between arteries and veins.