24 Questions
Which blood vessel carries blood away from the heart?
Arteries
What is the point of convergence between two blood vessels other than capillaries known as?
Anastomosis
Where is a portal system found in the human body?
Liver
What is the volume of blood flowing through a tissue in a given time called?
Blood flow
Which organ would experience an increase in blood flow with exercise?
Skin
What is the simplest and most common route of blood flow in the body?
Heart → arteries → arterioles → capillaries → venules → veins → heart
What is responsible for establishing the pressure gradient in the cardiovascular system?
The pumping action of the heart
In which type of flow does the fluid follow a straight path at low flow rates?
Laminar flow
Where is the velocity of blood flow highest during laminar flow?
In the middle of the blood vessel
Where is the site of greatest resistance in the entire vascular network?
Arterioles
What type of blood flow can be detected during certain times of the cardiac cycle in the body?
Turbulent flow
What decreases when resistance increases in the cardiovascular system?
Blood flow
Where does the total cross-section of blood vessels increase to its highest value?
Capillaries
What is responsible for generating blood pressure in the cardiovascular system?
Heart's pumping action
Where is the average blood pressure highest in the cardiovascular system?
Arteries
What type of motion does laminar flow exhibit at low flow rates?
Parallel layers movement
What is the main function of elastic arteries in the cardiovascular system?
To absorb systolic pressure during diastole
What happens to blood pressure if artery walls were rigid and unable to stretch and recoil?
It greatly increases
What is the role of muscular arteries in the cardiovascular system?
To carry blood to specific organs
What type of motion do elastic arteries exhibit during systole and diastole?
They expand (stretch) during systole and recoil during diastole
What is the primary function of arteries?
To carry arterial (oxygenated) blood away from the heart
Which layer of blood vessels plays the most important role in adjusting the diameter of a blood vessel?
Tunica media
What happens when the smooth muscle in the vessel wall contracts?
The blood vessel constricts and resistance increases
What is the outer layer of a blood vessel made of?
Connective tissue
Test your knowledge of the route of blood flow from the heart through the arteries, arterioles, capillaries, venules, and veins back to the heart. Learn about exceptions like portal systems and anastomoses along the way.
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