(a) Draw a labelled diagram of the human heart. (b) What is the use of platelets in the maintenance of human beings? (c) Which respiratory pigment is found in red blood corpuscles found in human blood?
(a) Draw a labelled diagram of the human heart. (b) What is the use of platelets in the maintenance of human beings? (c) Which respiratory pigment is found in red blood corpuscles found in human blood?
Answer
(a) The human heart is divided into four chambers: two atria and two ventricles. (b) Platelets help in blood clotting. (c) Hemoglobin is the respiratory pigment in red blood cells that carries oxygen.