30 Questions
Which substances can pass through the intercellular cleft in capillaries?
Water soluble substances
Which organs have capillaries with fenestrated endothelial cells?
Kidney
What is the composition of interstitial fluid?
Similar to plasma except for proteins
What are the forces favoring filtration across capillaries?
Capillary pressure (Pc)
What is the net movement of fluid from the arterial end of a capillary into the interstitial space?
Out
What is the net movement of fluid from the venous end of a capillary into the interstitial space?
In
What is the role of the lymphatic system?
Collect fluid and protein from interstitial spaces
What causes an increase in interstitial fluid pressure?
Increased lymph flow
What is the function of the lymphatic pump?
Contract smooth muscle cells
Why does the lymph flow curve plateau?
Valves in lymph channels
Which of the following is responsible for controlling blood flow to each tissue area in the microcirculation?
Small arterioles
What is the suitable characteristic of capillaries for solute and water transfer?
High surface area
Which of the following substances has the highest molecular weight?
Albumin
What is the diameter range of capillaries?
4-5 µm
Which of the following substances can directly diffuse through the capillary membrane?
Water
Which component of the microcirculation is responsible for recruiting more capillaries if there is increased demand?
Metarteriole
What is the thickness of the capillary wall?
0.5 µm
Which component of the microcirculation has a single endothelial cell layer and no vascular smooth muscle cells?
Capillaries
Which of the following substances has the lowest molecular weight?
Water
Which component of the microcirculation is larger than arterioles and has a weaker muscular coat?
Small venules
Which of the following factors affect lymph flow?
All of the above
What is the function of the lymphatic pump?
To drain lymphatic fluid
What is the capillary filtration coefficient (Kf)?
A measure of capillary filtration
What can cause extracellular edema?
Increased capillary filtration
What can lead to swollen gums?
Poor dental hygiene
What is the role of the lymphatic system?
To maintain tissue fluid balance
What can cause allergic response?
Increased capillary permeability
What can result in lymphatic obstruction?
All of the above
What can lead to fluid retention?
Increased capillary pressure
What can cause protein loss through urine?
Decreased plasma colloid pressure
Test your knowledge on the microcirculation and lymphatic system with this quiz! Explore topics such as capillary fluid exchange, interstitial fluid, and lymph flow. Learn about the important functions of the circulation and how nutrients are delivered and wastes are removed. Challenge yourself and enhance your understanding of this vital physiological process.
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