Q.1
MALT constitutes about ___________ percent of the lymphoid tissue in human body. ….[NEET- 2017]
  • a) 50%
  • b) 20%
  • c) 70%
  • d) 10%
Q.2
How do parasympathetic neural signals affect the working of the heart? …[AIPMT 2014]
  • a) Both heart rate and cardiac output increase.
  • b) Heart rate decreases but cardiac output increases.
  • c) Reduce both heart rate and cardiac output.
  • d) Heart rate is increased without affecting the cardiac output.
Q.3
Person with blood group AB is considered as universal recipient because he has: …[AIPMT 2014]
  • a) no antigen on RBC and no antibody in the plasma.
  • b) both A and B antigens in the plasma but no antibodies.
  • c) both A and B antigens on RBC but no antibodies in the plasma.
  • d) both A and B antibodies in the plasma.
Q.4
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence? [ ReAIPMT 2015] Explanation is provided, please click on
  • a) Serum globulins
  • b) Fibrinogin in plasma
  • c) Serum albumins
  • d) Haemocytes
Q.5
Reduction in pH of blood will :- …[AIPMT-2016]
  • a) reduce the rate of heart beat.
  • b) reduce the blood supply to the brain.
  • c) decrease the affinity of hemoglobin with oxygen.
  • d) release bicarbonate ions by the liver.
Q.6
Blood pressure in the pulmonary artery is :- …[AIPMT-2016]
  • a) same as that in the aorta.
  • b) more than that in the carotid.
  • c) more than that in the pulmonary vein.
  • d) less than that in the venae cavae.
Q.7
Figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s. …[NEET 2013]
unit-5_ch-5_que_no-438_img_no1.png
  • a) A – Pulmonary vein – takes impure blood from body parts, PO2 = 60 mm Hg
  • b) B – Pulmonary artery – takes blood from heart to lungs, PO2 = 90 mm Hg
  • c) C – Vena Cava – takes blood from body parts to right auricle, PCO2 = 45 mm Hg
  • d) D – Dorsal aorta – takes blood from heart to body parts, PO2 = 95 mm Hg
Q.8
The diagram given here is the standard ECG of a normal person. The P-wave represents the …[NEET 2013]
unit-5_ch-5_que_no-439_img_no1.png
  • a) Contraction of both the atria
  • b) Initiation of the ventricular contraction
  • c) Beginning of the systole
  • d) End of systole
Q.9
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body. …[NEET 2016] Explanation is provided, please click on
  • a) Neutrophils
  • b) Thrombocytes
  • c) Erythrocytes
  • d) Leucocytes
Q.10
Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? ….[NEET- 2017] (a) They do not need to reproduce (b) They are somatic cells (c) They do not metabolize (d) All their internal space is available for oxygen transport
  • a) Only (d)
  • b) Only (a)
  • c) (a), (c) and (d)
  • d) (b) and (c)
Q.11
The genotypes of a Husband and Wife are IAIB and IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible? ….[NEET- 2017]
  • a) 3 genotypes ; 3 phenotypes
  • b) 3 genotypes ; 4 phenotypes
  • c) 4 genotypes ; 3 phenotypes
  • d) 4 genotypes ; 4 phenotypes
Q.12
Which layer of the following serves the dual purpose of forming the inner layer of the pericardium and forming the outermost wall of the heart?
  • a) fibrous pericardium
  • b) parietal pericardium
  • c) visceral pericardium
  • d) myocardium
Q.13
During high blood pressure, regulations of heart beat and circulation are controlled by ... ... [ AIIMS 1999 ]
  • a) Vasodilator and vasoconstrictor centres.
  • b) Cardio-stimulatory and vasoconstrictor centres
  • c) Cardio-inhibitory and vasoconstrictor centres
  • d) Cardio - inhibitory and vasodilator centres
Q.14
Purkinje fibres are connected with impulse conducting system of .... [ BHU 2000 ]
  • a) Heart
  • b) Brain
  • c) Skin
  • d) Kidney nephrons
Q.15
Which one are granulocytes... .. [ manipal 2002 ]
  • a) Neutrophis, basophilis, lymphocytes
  • b) Eosinophils, basophils, monocytes
  • c) Basophils, monocytes, lymphocytes
  • d) Neutrophils, eosinophils, basophils
Q.16
Thoracic duct is associated with ... ... [ BHU 2002 ]
  • a) Purkinje fibres
  • b) Hepatic duct
  • c) Innominate vein
  • d) Aorta
Q.17
Purkinje fibres are present in ... ... [ MPPMT 2012 ]
  • a) Heart
  • b) Cerebrum
  • c) Semicircular canals
  • d) Voluntary muscles
Q.18
Bundle of His is a network of ... ... [ CBSE 2003 ]
  • a) Muscle fibres distributed throughout heart walls
  • b) Muscle fibres found only in ventricle wall
  • c) Nerve fibres distributed in ventricles
  • d) Nerve fibres found throughout the heart
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