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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