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Comparison of Vertebrate Limbs

Biology

BIOLOGY PRACTICAL ACTIVITIES

BIOLOGY PRACTICAL ACTIVITIES   Comparison of Vertebrate Limbs Limbs of various vertebrates are provided: e.g. fish- Tilapia, amphibian-frog reptiles, lizard; bird – domestic fowl (chicken), mammal- rabbit. Their anatomy can be studied. The following can be noted: That all limbs have five sets of bones; A single upper bone- the femur in hind limb and the humerus in fore limb Two lower limb bones -i.e. the tibia & fibula in the hind limb & ulna & radius in the forelimb. Small bones – i.e. ankle (tarsals) and wrist bones (carpals) The bones making the foot and hand are metatarsals and metacarpals respectively. The bones of toes and of fingers i.e. phalanges Observe the various modifications of these bones in the various animals. Limbs of different mammals e.g. rabbit, cow, donkey reveal that the anatomy is adapted to mode or type of movement. e.g. the horse has a single digit. An… Read More »BIOLOGY PRACTICAL ACTIVITIES

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