COMPARING HUMAN BLOOD VESSELS TO THOSE OF OTHER VERTEBRATES: VESSELS OF THE LEG

human

In humans, the external iliac artery forms the femoral which forms the popliteal which divides into anterior and posterior tibial arteries to bring arterial blood to the leg. Corresponding veins (in addition to the great saphenous vein) return blood from the leg. Do other vertebrates possess similar blood vessels?

cat

cat

cat

MONKEY

monkey

monkey

WHAT SPECIFIC SIMILARITIES AND DIFFERENCES DID YOU NOTICE BETWEEN THE HUMAN STRUCTURES AND THOSE OF OTHER VERTEBRATES? HOW DO THESE STRUCTURAL SIMILARITIES/DIFFERENCES COMPARE TO SIMILARITIES/DIFFERENCES IN LIFESTYLE? WHAT MAKES HUMANS UNIQUE? WHAT RELATIONSHIPS BETWEEN ORGANISMS DO YOU FEEL ARE SUPPORTED BY YOUR COMPARISONS OF THEIR FEATURES? WHAT FEATURES DO YOU FEEL DEFINE A PARTICULAR GROUP?
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