Cardio 7

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What is the term used to describe the intermittent contraction of metarterioles and precapillary sphincters?

Perfusion

Reabsorption

Vasomotion (correct)

Filtration

What is the primary factor that determines the degree of opening and closing of the metarterioles and precapillary sphincters?

Concentration gradients

Oncotic pressure

Hydrostatic pressure

Oxygen availability (correct)

How do lipid-soluble substances typically cross the capillary wall?

Due to hydrostatic pressure

Through water-filled clefts or large pores

By dissolving in and diffusing across the endothelial membrane (correct)

By being actively transported

What is the term used to describe the movement of water from the capillary plasma into the interstitial fluid?

Filtration Signup and view all the answers

What is the term used to describe the fluid present in the interstitium, the spaces between cells?

Interstitial fluid Signup and view all the answers

What is the term used to describe the large amounts of free interstitial fluid that can accumulate, causing edema?

Edema Signup and view all the answers

What is the main function of the lymphatic system in relation to fluid balance?

To take up excess fluid from the tissue Signup and view all the answers

What is the role of the precapillary sphincter?

To open or close the entrance of the capillary Signup and view all the answers

How do water-soluble substances cross the capillary wall?

Through water-filled clefts or large pores (fenestrated capillaries) Signup and view all the answers

What is the function of the metarterioles?

To regulate the blood flow through the capillaries Signup and view all the answers

What is the main difference between the capillary walls of the brain and the liver?

The brain has tight junctions that allow only small molecules to pass, while the liver has wide open clefts between cells Signup and view all the answers

What is the main role of the venules in the microcirculation?

To distribute blood volume within the body Signup and view all the answers

What is the role of the lymphatic system in controlling interstitial fluid protein concentration, volume, and pressure?

Maintains protein concentration, volume, and pressure Signup and view all the answers

What prevents interstitial fluid and protein from exiting lymphatic capillaries?

Flap valves Signup and view all the answers

What is the main determinant of lymph flow within the lymphatic vessels?

Muscle contractions Signup and view all the answers

What function does the lymphatic system perform related to fat transport?

Absorbs fats from intestines and transports to blood stream Signup and view all the answers

Which system is responsible for transporting foreign material to lymph nodes for the development of immune cells?

Lymphatic system Signup and view all the answers

How can changes in Starling forces affect fluid movement?

Influence direction and magnitude of fluid movement Signup and view all the answers

What is the primary force that drives fluid out of the interstitial space into the capillaries?

Interstitial fluid hydrostatic pressure Signup and view all the answers

What is the main function of the lymphatic system in relation to fluid balance?

To remove proteins and large particles from the interstitial spaces Signup and view all the answers

What is the primary force that drives fluid reabsorption from the interstitial space into the capillaries?

Capillary oncotic pressure Signup and view all the answers

What is the net filtration pressure at the arterial end of the capillary?

$10$ mmHg Signup and view all the answers

What is the net filtration pressure at the venous end of the capillary?

$-8$ mmHg Signup and view all the answers

What is the primary function of albumin in the body's fluid balance?

To hold water within the intravascular space Signup and view all the answers

What is the role of capillary permeability in fluid movement?

It determines the hydraulic conductance of the capillary wall Signup and view all the answers

What is the approximate amount of fluid that is reabsorbed from the interstitial spaces into the capillaries each day?

17 liters Signup and view all the answers

What is the approximate amount of fluid that is filtered from the capillaries into the interstitial spaces each day?

20 liters Signup and view all the answers

What is the primary force that drives fluid out of the capillaries at the arterial end?

Capillary hydrostatic pressure Signup and view all the answers

What is the primary cause of fluid accumulation in congestive heart failure?

Increased capillary hydrostatic pressure Signup and view all the answers

Which condition is characterized by the leakage of plasma proteins into the intestinal tract, leading to decreased oncotic pressure and fluid accumulation?

Protein-losing enteropathy Signup and view all the answers

What is the primary mechanism behind the development of edema or effusion in cases of local inflammation, such as a snake bite?

Release of vasoactive mediators Signup and view all the answers

Which condition can impair the normal drainage of fluid from tissues, causing fluid accumulation?

Lymphoma Signup and view all the answers

Which type of edema is characterized by fluid accumulation in the abdominal cavity?

Ascites Signup and view all the answers

What is the term used to describe the abnormal collection of fluid between tissues or in a hollow space?

Effusion Signup and view all the answers

Cardio 7

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Questions and Answers

What is the term used to describe the intermittent contraction of metarterioles and precapillary sphincters?

What is the primary factor that determines the degree of opening and closing of the metarterioles and precapillary sphincters?

How do lipid-soluble substances typically cross the capillary wall?

What is the term used to describe the movement of water from the capillary plasma into the interstitial fluid?

What is the term used to describe the fluid present in the interstitium, the spaces between cells?

What is the term used to describe the large amounts of free interstitial fluid that can accumulate, causing edema?

What is the main function of the lymphatic system in relation to fluid balance?

What is the role of the precapillary sphincter?

How do water-soluble substances cross the capillary wall?

What is the function of the metarterioles?

What is the main difference between the capillary walls of the brain and the liver?

What is the main role of the venules in the microcirculation?

What is the role of the lymphatic system in controlling interstitial fluid protein concentration, volume, and pressure?

What prevents interstitial fluid and protein from exiting lymphatic capillaries?

What is the main determinant of lymph flow within the lymphatic vessels?

What function does the lymphatic system perform related to fat transport?

Which system is responsible for transporting foreign material to lymph nodes for the development of immune cells?

How can changes in Starling forces affect fluid movement?

What is the primary force that drives fluid out of the interstitial space into the capillaries?

What is the main function of the lymphatic system in relation to fluid balance?

What is the primary force that drives fluid reabsorption from the interstitial space into the capillaries?

What is the net filtration pressure at the arterial end of the capillary?

What is the net filtration pressure at the venous end of the capillary?

What is the primary function of albumin in the body's fluid balance?

What is the role of capillary permeability in fluid movement?

What is the approximate amount of fluid that is reabsorbed from the interstitial spaces into the capillaries each day?

What is the approximate amount of fluid that is filtered from the capillaries into the interstitial spaces each day?

What is the primary force that drives fluid out of the capillaries at the arterial end?

What is the primary cause of fluid accumulation in congestive heart failure?

Which condition is characterized by the leakage of plasma proteins into the intestinal tract, leading to decreased oncotic pressure and fluid accumulation?

What is the primary mechanism behind the development of edema or effusion in cases of local inflammation, such as a snake bite?

Which condition can impair the normal drainage of fluid from tissues, causing fluid accumulation?

Which type of edema is characterized by fluid accumulation in the abdominal cavity?

What is the term used to describe the abnormal collection of fluid between tissues or in a hollow space?

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