Anatomy & Physiology of the Lymphatic Vessels

The video tutorial explains the lymphatic system, focusing on lymphatic vessels and their role in fluid movement. It covers the process of filtration and reabsorption in capillaries, the function of lymphatic capillaries, and the structure of lymphatic vessels, including the presence of valves and smooth muscle. The tutorial also discusses the skeletal muscle pump's role in aiding lymphatic fluid movement and preventing edema, emphasizing the importance of physical activity.

What is the primary function of lymphatic vessels?

• To transport oxygen

• To transport nutrients

• To transport lymph

• To transport blood

What percentage of fluid is typically reabsorbed directly into the venous end of the capillary?

• 50%

• 95%

• 75%

• 85%

What condition can result from the failure to absorb excess fluid in the lymphatic capillaries?

• Diabetes

• Hypertension

• Edema

• Anemia

What is the role of valves in lymphatic vessels?

• To increase blood pressure

• To prevent backflow of lymph

• To filter lymph

• To absorb nutrients

How does the skeletal muscle pump assist lymphatic vessels?

• By aiding lymph movement against gravity

• By preventing lymph leakage

• By filtering lymph

• By increasing blood pressure

What impact does a sedentary lifestyle have on the lymphatic system?

• It promotes edema

• It reduces blood pressure

• It strengthens lymphatic vessels

• It increases lymph production

Which vessels do lymphatic vessels ultimately return fluid to?

• Subclavian and internal jugular veins

• Aorta

• Pulmonary veins

• Coronary arteries