BLOOD VESSELS AND LYMPHATIC SYSTEM



BLOOD VESSELS AND LYMPHATIC SYSTEM

SIMILARITIES AND DIFFERENCES

I. Arteries, Veins, Capillaries

SIMILARITIES DIFFERENCES

3 same layers -veins have thinner layers

-capillaries have one layer

carry blood cells -arteries carry oxygenated blood except pulmonary

-veins carry deoxygenated blood except

pulmonary

- capillaries carry both

-veins have valves

-capillaries are for exchange—one cell can pass

-veins take blood to heart

-arteries take blood away from heart

all have measurable pressure (force on walls) -arteries have higher pressure than veins

Movement based on external and internal forces -arterial moves through high pressure from heart

all have smooth muscle layer pumping & muscle contraction from smooth muscle

-veins move through skeletal muscle movement & smooth muscle contractions

all are flexible capillary movement through osmotic pressure

all have lumen (space in middle) veins lumen larger, arteries smaller

II. Lymphatic vs. Cardiovascular

SIMILARITIES DIFFERENCES

Lymphatic vessels have same three layers -lymphatic vessel walls are thinner than arteries

Have similar structure to veins including valves

-lymphatic vessels have anchors that help with

Lymphatic structures have similar movement movement of lymph

of veins

both contain fluid -called plasma in bloodstream and lymph in lymph

vessels, but it is the same fluid

lymphatic vessels are closely associated with blood

vessels

lymph vessels are very close to capillaries

III. Lymphatic Organs—see notes to fill in

IV, Antigens Vs. Antibodies

SIMILARITIES DIFFERENCES

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