Blood and Circulatory System
This test covers human circulatory system and blood.
Questions
Which of the following is an agranulocyte?
- Eosinophil
- Basophil
- Neutrophil
- Lymphocyte
Concave surfaces of mammalian RBCs are helpful in
- providing more space for hemoglobin
- formation of more hemoglobin
- increasing surface area of RBCs
- reducing surface tension of plasma membrane
Increase in the level of bilirubin results in
- jaundice
- leukemia
- toxemia of blood
- anemia
The impulse of heart beat originates in
- SA node
- AV node
- Chordae tendineae
- Purkinje fibres
Deoxygenated blood flows to right atrium by
- pulmonary veins
- superior and inferior vena cava
- aorta
- coronary veins
Name the genetic disorder that occurs due to altered beta polypeptide chain of the globin portion of the hemoglobin.
- Pernicious anemia
- Sickle cell anemia
- Mononucleosis
- Aplastic anemia
Which of the following is not needed in blood clotting?
- Vitamin K
- Calcium
- Prothrombin
- Erythrocytes
Nucleus and mitochondria are not found in
- WBCs of mammals
- Young immature mammalian erythocytes
- Mature mammalian erythrocytes
- RBCs of frog
The correct route through which pulse making impulse travels in the heart is
- AV node--------Bundle of HIS---------SA node----------Purkinje fibres---------------Heart muscles
- AV node-------- SA node ------------- Purkinje fibres----------- Bundle of HIS--------- Heart muscles
- SA node------- AV node ---------------Bundle of HIS------------- Purkinje fibres-------------------Heart muscles
- SA node -------- Purkinje fibres--------------Bundle of HIS----------AV node--------------- Heart muscles
Which of the following has a thicker myocardium?
- Right atrium
- Left atrium
- Right ventricle
- Left ventricle
Which of the following heart diseases is associated with myocardial ischemic disease?
- Atherosclerosis
- Arrthymia
- Heart murmur
- Dextrocardia
The volume of blood pumped by each ventricle in one minute, i.e. cardiac output is determined by
- epinephrine, autonomus nervous system
- stroke volume and pulse rate
- blood pressure
- coronary circulation
Congenital heart defect in babies is known as
- coronary heart disease
- myocarditis
- bradycardia
- cyanosis
WBCs accumulate at the site of wound by
- diapedesis
- hemostasis
- phagocytosis
- breaking of capillaries
Which of the following has a higher affinity for the iron of hemoglobin?
- Oxygen
- Carbon monoxide
- Carbon dioxide
- All of these have the same affinities