(a) 140
(b) 120
(c) 180
(d) 80
Ans: (b)
122. Pacemaker is the
(a) Sinu-auricular node
(b) Auriculo-ventricular node
(c) Bundle of His
(d) Purkinje fibres
Ans: (a)
123. When does the heart start functioning?
(a) At birth
(b) After birth
(c) Before birth
(d) After a week from birth
Ans: (c)
124. The rate of heartbeat is accelerated by the hormone
(a) adrenaline
(b) acetylcholine
(c) thyroxine
(d) pituitrin
Ans: (a)
125. Blood cancer is otherwise called
(a) Leukaemia
(b) Leucoderma
(c) Leucocytopenia
(d) Erythrocemia
Ans: (a)
126. Which one of the following is essential for blood clotting?
(a) RBC
(b) WBC
(c) Blood platelets
(d) Lymph
Ans: (c)
127. The study of heart is called
(a) haematology
(b) cardiology
(c) pathology
(d) nephrology
Ans: (b)
128. The counting of RBCs is done with
(a) haemocytometer
(b) haemoglobinometer
(c) clinostat
(d) thermometer
Ans: (a)
129. Blood is a kind of
(a) epithelial tissue
(b) connective tissue
(c) nervous tissue
(d) cartilage
Ans: (b)
130. Oxygen transport is a function of
(a) white blood corpuscles
(b) red blood corpuscles
(c) blood platelets
(d) plasma
Ans: (b)
131. Blood of cockroach is
(a) red
480