Weekly quiz 6: Lymphatics Flashcards
Which of the following would increase lymph formation?
Increased blood pressure
Increased plasma oncotic (osmotic) pressure
Both of the above
None of the above
Increased blood pressure
Ace bandages prevent swelling of a sprained ankle because they
Increase plasma osmotic pressure.
Decrease the pressure gradient between vessels and the interstitial space.
Increase the pressure gradient between vessels and the interstitial space.
Decrease the pressure gradient between vessels and the interstitial space.
Inflammation causes edema. Why?
Increased hydrostatic pressure increases filtration from the capillaries
Decreased hydrostatic pressure increases filtration from the capillaries
The osmotic pressure gradient between plasma and the interstitial space is increased
The osmotic pressure gradient between plasma and the interstitial space is decreased
The osmotic pressure gradient between plasma and the interstitial space is decreased
The largest lymphatic vessels return lymph to
The interstitial fluid
Cerebrospinal fluid (CSF)
The digestive system
The circulatory system
The circulatory system
Which of the following would decrease lymph formation?
Increased blood pressure
Increased plasma osmotic pressure
Both of the above
None of the above
Increased plasma osmotic pressure
Tonsils
Monitor lymph for pathogens
Are considered primary lymphoid organs
Monitor mucous membranes for pathogens that could enter the body
Filter blood
Monitor mucous membranes for pathogens that could enter the body
A secondary immune response is
Weaker than a primary response due to activation of suppressor T and B cells
Weaker than a primary response due to activation of neutrophils
Stronger than a primary response due to activation of memory T and B cells
Stronger than a primary immune response due to activation of neutrophils
Stronger than a primary response due to activation of memory T and B cells
Ice prevents swelling of a sprained ankle because it
Causes constriction of arterioles, decreasing capillary blood flow and hydrostatic pressure.
Causes dilation of arterioles, decreasing capillary blood flow and hydrostatic pressure.
Decreases plasma osmotic pressure.
Increases plasma osmotic pressure.
Causes constriction of arterioles, decreasing capillary blood flow and hydrostatic pressure.
Pressure moves fluid into the lymphatics because
More fluid is reabsorbed into capillaries than filtered into the interstitial space
More fluid is filtered into the interstitial space than reabsorbed into capillaries
Plasma is pushed backward from the right atrium into lymphatic vessels
Plasma is pushed backwards from the left atrium into lymphatic vessels
The spleen filters blood and pumps it through the lymphatic vessels
More fluid is filtered into the interstitial space than reabsorbed into capillaries
A lymph node
Monitors blood for pathogens
Filters blood and removes old red blood cells
Produces lymphocytes
Filters lymph
All of the above
Filters lymph
Elevating a sprained ankle prevents swelling because it
Decreases capillary hydrostatic pressure.
Increases capillary hydrostatic pressure.
Decreases plasma osmotic pressure.
Decreases capillary hydrostatic pressure.
Many choice: Which of the following might be a cause of edema?
Hypotension (low blood pressure)
Inflammation
High plasma protein concentration due to dehydration
Inflammation
Many choice: Primary lymphoid organs include
Bone marrow
Thymus
Spleen
Bone marrow
Thymus
Lymph normally travels from
The heart towards the veins
The heart towards the arteries
From lymphatic capillaries towards lymph nodes and the venous circulation
From lymphatic capillaries towards lymph nodes and the arterial circulation
From lymphatic capillaries towards lymph nodes and the venous circulation
When we tear ligaments in our ankle, we call it a sprained. Sprained ankles swell because
An inflammatory response decreases the plasma osmotic pressure gradient.
An inflammatory response increases blood pressure.
An inflammatory response decreases blood pressure.
An inflammatory response increases the plasma osmotic pressure gradient.
An inflammatory response decreases the plasma osmotic pressure gradient.
Many choice: Which of the following are secondary lymphoid organs?
Red bone marrow
Lymph nodes
The interstitial space
Lymph nodes
The spleen
Hosts stem cells that produce lymphocytes
Defends against pathogens in the digestive tract
Filters blood and helps remove old red blood cells
Increases blood pressure when stimulated by the parasympathetic nervous system
Filters blood and helps remove old red blood cells
The lymphatics are a
High pressure system
Low pressure system
There is no pressure difference between small and large lymphatic vessels
Low pressure system
