BIO-202L: Lymphatic System Quiz Bundle 2025 |
Real Exam Questions and Verified A+ Answers
List the three main functions of the lymphatic system. - *Fluid recovery: (absorbs plasma
proteins and fluid-10 to 15% (2 to 4 L per day) from tissues and returns it to blood stream)
-interference with lymphatic drainage leads to severe trauma
*Lipid absorption: (lacteals in small intestine absorb dietary lipids)
*Immunity: (fluids has to go through lymph nodes on way back to bloodstream where immune
cells stand ready)
Why does it matter that the endothelium of capillaries are only one cell layer thick? -
Capillaries-->distribute oxygenated blood out to the tissues of your body, and then move
deoxygenated blood from the tissues back into the veins
*Allows oxygen to be easily distributed and allows carbon dioxide to be easily collected while
collecting wastes
Compare and contrast diffusion and osmosis. - Diffusion: mixing of two or more
substances from an area of high concentration to an area of low concentration
*perfume in a room
Osmosis: diffusion of WATER through a membrane from a solution of low solute concentration
(high water potential) to a solution with high solute concentration (low water potential)
What is osmotic pressure? - Osmotic Pressure (Colloid; Oncotic): high concentrate of
substance tries to diffuse (disperse) to become equal through the area BUT this occurs over a
membrane.
-The membrane restricts movement of bigger solutes
-In the blood the big solutes are: Albumin (protein)
*no big particles move
What is hydrostatic pressure? - Hydrostatic Pressure: hose with holes, fluid "wants" to go
out of blood
What is CHP? - Circulatory Hydrostatic Pressure
What is IFHP? - Interstitial Fluid Hydrostatic Pressure
, What is COP? - Circulatory Osmotic Pressure
What is IFOP? - Interstitial Fluid Osmotic Pressure
Does filtration actually ever exactly equal reabsorption? -
What is interstitial fluid? Where does it go if it is not reabsorbed into the capillary? - -The
fluid forced out of the arterial ends of capillary beds, most is reabsorbed, the part that remains
in tissue is interstitial fluid (3-4 L/day)
*when you scrap yourself but not enough to bleed, interstitial fluid seeps out
*the fluid must make its way back to the bloodstream, the lymphatic vessels collect this extra
protein-containing interstitial fluid (lymph) and return it to the bloodstream
What is Edema? - Observable swelling from fluid accumulation in body tissues (most
common in feet and legs)
What are the causes of Edema? - CAUSES of Edema:
*Increase in capillary filtration (increase BP or permeability)
-poor venous return
-congestive heart failure-pulmonary edema
-insufficient muscular activity
-Kidney failure (water retention, hypertension)
-Histamine makes capillaries more permeable
*Decrease capillary reabsorption
-Hypoproteinemia (oncotic pressure is proportional to blood albumin) cirrhosis, famine, burns,
kidney disease
What can edema lead to? - Lymphedema (obstructed lymphatic drainage)
How is edema treated? - -Excercises, Bandages, Compression garments (socks, TEDS),
Pneumatic compression, Diuretics
*sometimes no cure, can only be managed
What is the general flow of lymph through the human body? - *Lymph flows only one
way--toward the heart
Real Exam Questions and Verified A+ Answers
List the three main functions of the lymphatic system. - *Fluid recovery: (absorbs plasma
proteins and fluid-10 to 15% (2 to 4 L per day) from tissues and returns it to blood stream)
-interference with lymphatic drainage leads to severe trauma
*Lipid absorption: (lacteals in small intestine absorb dietary lipids)
*Immunity: (fluids has to go through lymph nodes on way back to bloodstream where immune
cells stand ready)
Why does it matter that the endothelium of capillaries are only one cell layer thick? -
Capillaries-->distribute oxygenated blood out to the tissues of your body, and then move
deoxygenated blood from the tissues back into the veins
*Allows oxygen to be easily distributed and allows carbon dioxide to be easily collected while
collecting wastes
Compare and contrast diffusion and osmosis. - Diffusion: mixing of two or more
substances from an area of high concentration to an area of low concentration
*perfume in a room
Osmosis: diffusion of WATER through a membrane from a solution of low solute concentration
(high water potential) to a solution with high solute concentration (low water potential)
What is osmotic pressure? - Osmotic Pressure (Colloid; Oncotic): high concentrate of
substance tries to diffuse (disperse) to become equal through the area BUT this occurs over a
membrane.
-The membrane restricts movement of bigger solutes
-In the blood the big solutes are: Albumin (protein)
*no big particles move
What is hydrostatic pressure? - Hydrostatic Pressure: hose with holes, fluid "wants" to go
out of blood
What is CHP? - Circulatory Hydrostatic Pressure
What is IFHP? - Interstitial Fluid Hydrostatic Pressure
, What is COP? - Circulatory Osmotic Pressure
What is IFOP? - Interstitial Fluid Osmotic Pressure
Does filtration actually ever exactly equal reabsorption? -
What is interstitial fluid? Where does it go if it is not reabsorbed into the capillary? - -The
fluid forced out of the arterial ends of capillary beds, most is reabsorbed, the part that remains
in tissue is interstitial fluid (3-4 L/day)
*when you scrap yourself but not enough to bleed, interstitial fluid seeps out
*the fluid must make its way back to the bloodstream, the lymphatic vessels collect this extra
protein-containing interstitial fluid (lymph) and return it to the bloodstream
What is Edema? - Observable swelling from fluid accumulation in body tissues (most
common in feet and legs)
What are the causes of Edema? - CAUSES of Edema:
*Increase in capillary filtration (increase BP or permeability)
-poor venous return
-congestive heart failure-pulmonary edema
-insufficient muscular activity
-Kidney failure (water retention, hypertension)
-Histamine makes capillaries more permeable
*Decrease capillary reabsorption
-Hypoproteinemia (oncotic pressure is proportional to blood albumin) cirrhosis, famine, burns,
kidney disease
What can edema lead to? - Lymphedema (obstructed lymphatic drainage)
How is edema treated? - -Excercises, Bandages, Compression garments (socks, TEDS),
Pneumatic compression, Diuretics
*sometimes no cure, can only be managed
What is the general flow of lymph through the human body? - *Lymph flows only one
way--toward the heart
