Capillaries Veins And Arteries Flashcards
What are the three main types of blood vessels in the circulatory system?
Arteries, veins, and capillaries.
True or False: Arteries carry blood away from the heart.
True.
Fill in the blank: The smallest blood vessels are called __________.
capillaries.
What type of blood do veins typically carry?
Deoxygenated blood.
Which blood vessels have thick muscular walls?
Arteries.
True or False: Capillaries have valves to prevent backflow.
False.
What is the primary function of capillaries?
To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
Which blood vessels are responsible for regulating blood pressure?
Arteries.
Fill in the blank: Veins have __________ walls compared to arteries.
thinner.
What is the main structural difference between arteries and veins?
Arteries have thicker walls and more muscle than veins.
True or False: Blood in the pulmonary veins is oxygenated.
True.
Which blood vessels are most numerous in the body?
Capillaries.
What is the function of valves in veins?
To prevent the backflow of blood.
Multiple Choice: Which type of vessel has the highest blood pressure? A) Capillaries B) Veins C) Arteries
C) Arteries.
What is the term for the process of exchange of gases in capillaries?
Diffusion.
Fill in the blank: The __________ system returns deoxygenated blood to the heart.
venous.
True or False: Capillaries are only one cell thick.
True.
What type of blood do most arteries carry?
Oxygenated blood, except for pulmonary arteries.
Multiple Choice: Which vessel typically has the lowest pressure? A) Arteries B) Capillaries C) Veins
C) Veins.
What is the term for the network of capillaries in a tissue?
Capillary bed.
Fill in the blank: The __________ artery carries blood to the lungs.
pulmonary.
True or False: Veins generally have a larger lumen than arteries.
True.
What is the purpose of the endothelium in blood vessels?
To provide a smooth lining to reduce friction for blood flow.
Multiple Choice: Which vessel carries blood away from the heart? A) Veins B) Arteries C) Capillaries
B) Arteries.
What process allows nutrients and wastes to pass through capillary walls?
Filtration and diffusion.
Fill in the blank: The __________ is a major vein that carries deoxygenated blood from the body to the heart.
superior vena cava.
