18 Questions
What is the primary function of the circulatory system?
Transporting oxygen and carbon dioxide
What is the main function of the lymphatic system?
To return excess tissue fluid (lymph) to the blood circulatory system
Why are arterioles important in the circulatory system?
They constrict and dilate, affecting blood pressure
Why does filtration occur at the arterial end of a capillary?
Because blood pressure is higher than osmotic pressure
Which chamber of the heart primarily receives deoxygenated blood?
Right atrium
What happens to water at the venule end of a capillary?
It moves from interstitial fluid into the capillary (reabsorption)
What is the main function of venules in the circulatory system?
Drain blood from the capillaries
What do lymph nodes do within the lymphatic system?
Filter and trap bacteria and debris
Where do the two major ducts of the lymphatic system empty into?
Inferior vena cava near the heart
How do capillaries contribute to the circulatory system?
Facilitate exchange of nutrients and waste molecules
What is the role of valves in lymph vessels?
To prevent the flow of lymph in one direction
What is the function of the auricles in the heart?
Receive blood
Where does the fully oxygenated blood return to the heart from?
Pulmonary veins
What is the function of the coronary circulation in the heart?
Supplying oxygen and nutrients to the heart muscle
Which valve is located between the left atrium and left ventricle?
Bicuspid valve
What is the function of the hepatic portal system?
Returning blood from the digestive tract to the liver
How many flaps does the tricuspid valve have?
Three
Where does blood from the coronary circulation return to?
Right atrium via coronary sinus
Test your knowledge on the forces controlling fluid movement through capillary walls and the processes like filtration and osmotic pressure. Understand how blood pressure and osmotic pressure influence the movement of water between blood and tissue fluid.
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