Kin272 Lymphatics

When we tear ligaments in our ankle, we call it a sprained. Sprained ankles swell because

Select one:

a. An inflammatory response decreases the plasma osmotic pressure gradient.

b. An inflammatory response increases the plasma osmotic pressure gradient.

c. An inflammatory response increases blood pressure.

d. An inflammatory response decreases blood pressure.

a. An inflammatory response decreases the plasma osmotic pressure gradient

Ice prevents swelling of a sprained ankle because it

Select one:

a. Causes dilation of arterioles, decreasing capillary blood flow and hydrostatic pressure.

b. Decreases plasma osmotic pressure.

c. Causes constriction of arterioles, decreasing capillary blood flow and hydrostatic pressure.

d. Increases plasma osmotic pressure.

c. Causes constriction of arterioles, decreasing capillary blood flow and hydrostatic pressure

The spleen

Select one:

a. Increases blood pressure when stimulated by the parasympathetic nervous system

b. Filters blood and helps remove old red blood cells

c. Defends against pathogens in the digestive tract

d. Hosts stem cells that produce lymphocytes

b. Filters blood and helps remove old red blood cells

Liver failure might cause edema. What is the most likely cause?

Select one:

a. Elevated hydrostatic pressure

b. Reduced plasma protein concentration

c. Reduced hydrostatic pressure

d. Elevated plasma protein concentration

b. Reduced plasma protein concentration

A lymph node

Select one:

a. Filters lymph

b. All of the above

c. Produces lymphocytes

d. Monitors blood for pathogens

e. Filters blood and removes old red blood cells

a. Filters lymph

Which of the following would decrease lymph formation?

Select one:

a. Increased blood pressure

b. Increased plasma osmotic pressure

c. Both of the above

d. None of the above

b. Increased plasma osmotic pressure

Pressure moves fluid into the lymphatics because

Select one:

a. The spleen filters blood and pumps it through the lymphatic vessels

b. More fluid is reabsorbed into capillaries than filtered into the interstitial space

c. Plasma is pushed backwards from the left atrium into lymphatic vessels

d. Plasma is pushed backward from the right atrium into lymphatic vessels

e. More fluid is filtered into the interstitial space than reabsorbed into capillaries

e. More fluid is filtered into the interstitial space than reabsorbed into capillaries

Many choice: Primary lymphoid organs include

Select one or more:

Spleen

Thymus

Bone marrow

b. Thymus

c. Bone marrow

Which of the following would increase lymph formation?

Select one:

a. Increased blood pressure

b. Increased plasma oncotic (osmotic) pressure

c. Both of the above

d. None of the above

a. Increased blood pressure

Inflammation causes edema. Why?

Select one:

a. The osmotic pressure gradient between plasma and the interstitial space is increased

b. Increased hydrostatic pressure increases filtration from the capillaries

c. Decreased hydrostatic pressure increases filtration from the capillaries

d. The osmotic pressure gradient between plasma and the interstitial space is decreased

d. The osmotic pressure gradient between plasma and the interstitial space is decreased

The lymphatics are a

Select one:

a. High pressure system

b. Low pressure system

c. There is no pressure difference between small and large lymphatic vessels

b. Low pressure system

Many choice: Which of the following might be a cause of edema?

Select one or more:

a. Inflammation

b. High plasma protein concentration due to dehydration

c. Hypotension (low blood pressure)

a. Inflammation

Lymph normally travels from

Select one:

a. The heart towards the veins

b. From lymphatic capillaries towards lymph nodes and the arterial circulation

c. From lymphatic capillaries towards lymph nodes and the venous circulation

d. The heart towards the arteries

c. From lymphatic capillaries towards lymph nodes and the venous circulation

A secondary immune response is

Select one:

a. Weaker than a primary response due to activation of suppressor T and B cells

b. Weaker than a primary response due to activation of neutrophils

c. Stronger than a primary response due to activation of memory T and B cells

d. Stronger than a primary immune response due to activation of neutrophils

c. Stronger than a primary response due to the activation of memory T and B cells

The largest lymphatic vessels return lymph to

Select one:

a. The blood

b. The digestive system

c. The interstitial fluid

d. Cerebrospinal fluid (CSF)

e. The circulatory system

c. The circulatory system

Ace bandages prevent swelling of a sprained ankle because they

Select one:

a. Increase the pressure gradient between vessels and the interstitial space.

b. Increase plasma osmotic pressure.

c. Decrease the pressure gradient between vessels and the interstitial space.

d. Increase plasma osmotic pressure.

c. Decrease the pressure gradient between vessels and the interstitial space

Tonsils

Select one:

a. Filter blood

b. Are considered primary lymphoid organs

c. Monitor mucous membranes for pathogens that could enter the body

d. Monitor lymph for pathogens

c. Monitor mucous membranes for pathogens that could enter the body

Elevating a sprained ankle prevents swelling because it

Select one:

a. Increases capillary hydrostatic pressure.

b. Decreases capillary hydrostatic pressure.

c. Decreases plasma osmotic pressure.

d. Increases plasma osmotic pressure

b. Decreases capillary hydrostatic pressure

Many choice: Which of the following are secondary lymphoid organs?

Select one or more:

a. Red bone marrow

b. Lymph nodes

c. The interstitial space

b. Lymph nodes