10. Fill in the blank spaces:

              (a) All mammals (except a few) have __________ cervical vertebra.
              (b) The number of phalanges in each limb of human is __________
              (c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely __________ and                            __________.
              (d) In a muscle fibre Ca++ is stored in __________
              (e) __________ and __________ pairs of ribs are called floating ribs.
              (f) The human cranium is made of __________ bones.

Answers (1)
S Sonika

              (a) All mammals (except a few) have seven cervical vertebra.
              (b) The number of phalanges in each limb of human is 14.
              (c) Thin filament of myofibril contains 2 ‘F’ actins and two other proteins namely troponin and tropomyosin.
              (d) In a muscle fibre Ca++ is stored in sarcoplasmic reticulum. 
              (e)  11th and 12th pairs of ribs are called floating ribs.
              (f) The human cranium is made of eight bones.

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