Fill in the blanks : (i) Left auriculoventricular aperture is guarded by ____ valve while right auriculoventricular aperture is guarded by _____ valve. (ii) The human heart consists of ____ chambers while the fish heart has___ chambers. (iii) In man left auricle receives ___ blood by ____ pulmonary veins. (iv) Heart of cockroach has___ funnel shaped, segmentally arranged chambers. In each segment, a pair of _____ muscles is present on the either side of the heart. (v) An abnormal rise in R.B.C. count is called ____ and that of W.B.C. count is called____ .

Fill in the blanks : (i) Left auriculoventricular aperture is guarded

1.	Fill in the blanks : (i) Left auriculoventricular aperture is guarded by ____ valve while right auriculoventricular aperture is guarded by _____ valve. (ii) The human heart consists of ____ chambers while the fish heart has___ chambers. (iii) In man left auricle receives ___ blood by ____ pulmonary veins. (iv) Heart of cockroach has___ funnel shaped, segmentally arranged chambers. In each segment, a pair of _____ muscles is present on the either side of the heart. (v) An abnormal rise in R.B.C. count is called ____ and that of W.B.C. count is called____ .
Answer» (i) Bicuspid valve, tricuspid valve (ii) Four, two (iii) Oxygenated, four (iv) 13, alary (v) Polycythemia, leucocytosis.

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