Chapter 20

What direction do arteries carry blood relative to the heart?

• Only to the lungs
• Away from the heart
• In and out of the heart
• Towards the heart

What direction do veines carry blood relative to the heart?

• Veines carry blood towards the heart.

• Veines carry blood in a circular motion.

• Veines do not carry blood at all.

• Veines carry blood away from the heart.

Which blood vessels control the amount of blood to various organs?

• Arterioles
• Venules
• Capillaries
• Veins

Which vessels are considered exchange vessels?

• Capillaries
• Arteries
• Veins
• Aorta

Where is the greatest volume of blood found in the body at any given time?

• In the veins

• In the capillaries.
• In the heart chambers.
• In the arterial system.

What causes varicose veins?

• Genetic predisposition to heart disease.
• High blood pressure in the arms.
• Poor diet and lack of exercise.
• Valve dsyfunctions

What is a portal system?

• A portal system is a type of digestive system.
• A portal system is a method of data transfer between computers.
• Blood flows through two consecutive capillary networks before returning to heart

• A portal system is a network of neurons in the brain.

What are anastomoses?

• Anastomoses are types of blood cells.
• Anastomoses refer to the process of blood clotting.
• Anastomoses are a type of heart disease.
• An anastomosis is a convergence point between two vessels other than capillaries

  Provides collateral (alternative) routes of blood supply to a tissue

What is blood pressure?

• Blood pressure is the amount of oxygen in the blood.
• Blood pressure is the speed of blood flow in the arteries.
• Blood pressure is the volume of blood in the heart.
• Blood pressure is the force that blood exerts against a vessel wall

What is systolic blood pressure?

• Systolic blood pressure is the peak arterial BP exterted during ventricular contraction

• Systolic blood pressure is the average pressure in the arteries throughout the cardiac cycle.
• Systolic blood pressure measures the heart rate during exercise.
• Systolic blood pressure is the pressure in the veins during relaxation.