Biology
Related Questions
Match the items in Column A with those in Column B.
Column A Column B (a) Sino atrial node (i) Deoxygenated blood (b) Pulmonary veins (ii) Between right atrium and ventricle (c) Pulmonary artery (iii) Pacemaker (d) Tricuspid valve (iv) Between left atrium and ventricle (e) Biscuspid valve (v) Oxygenated blood Name:
(a) The membranous structure which divides the heart into a right and a left portion.
(b) The structure responsible for starting electrical impulses that cause the heart to contract and relax in order to keep pumping blood.
(c) The scientist who identified different types of blood groups.
Name the four blood groups on the basis of antigens
Name the two phases of double circulation