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Body Fluids and Circulation · Question 7

NEET (UG) 2024MCQEasy📈 Topic in 25% papers+4−1
1

Following are the stages of pathway for conduction of an action potential through the heart Choose the correct sequence of pathway from the options given below

  1. E-C-A-D-B
  2. A-E-C-B-D
  3. B-D-E-C-A
  4. E-A-D-B-C

Answer

(1) E-C-A-D-B

Solution

The action potential is generated by the SA node (pacemaker) (E), passes to the AV node (C), then to the AV bundle (bundle of His) (A), which divides into the right and left bundle branches (D) that end in the Purkinje fibres (B).

Sequence: E-C-A-D-B.

Answer: (1)

NEET (UG) 2024

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2

Match List I with List II : Choose the correct answer from the options given below :

  1. A-I, B-III, C-IV, D-II
  2. A-III, B-II, C-IV, D-I
  3. A-II, B-III, C-I, D-IV
  4. A-IV, B-II, C-I, D-III
NEET (UG) 2024
3

A person with blood group ARh- can receive the blood transfusion from which of the following types? Choose the correct answer from the options given below :

  1. D and E only
  2. D only
  3. A and B only
  4. C and D only
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4

'Lub' sound of Heart is caused by the .

  1. closure of the semilunar valves
  2. opening of tricuspid and bicuspid valves
  3. opening of the semilunar valves
  4. closure of the tricuspid and bicuspid valves
RE-NEET (UG) 2024
5

Match List I with List II. Choose the correct answer from the options given below :

  1. A-IV, B-III, C-II, D-I
  2. A-II, B-IV, C-I, D-III
  3. A-I, B-II, C-III, D-IV
  4. A-III, B-I, C-IV, D-II
NEET (UG) 2023
6

Which of the following statements are correct? Choose the correct answer from the options given below:

  1. C and E only
  2. B and C only
  3. A and B only
  4. D and E only
NEET (UG) 2023
7

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

  1. Both Statement I and Statement II are correct
  2. Both Statement I and Statement II are incorrect
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct
NEET (UG) 2022
8

Which one of the following statements is correct?

  1. The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
  2. The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
  3. Blood moves freely from atrium to the ventricle during joint diastole.
  4. Increased ventricular pressure causes closing of the semilunar valves.
NEET (UG) 2022
9

A unique vascular connection between the digestive tract and liver is called.

  1. Hepato-cystic system
  2. Hepato-pancreatic system
  3. Hepatic portal system
  4. Renal portal system
NEET (UG) 2022 (Phase 2)
10

Arrange the following formed elements in the decreasing order of their abundance in blood in humans: Choose the most appropriate answer from the options given below:

  1. A, C, B, D, E
  2. C, A, B, E, D
  3. C, B, A, E, D
  4. D, E, B, A, C
NEET (UG) 2022 (Phase 2)
11

Persons with 'AB' blood group are called as "Universal recipients". This is due to :

  1. Absence of antibodies, anti-A and anti-B, in plasma
  2. Absence of antigens A and B on the surface of RBCs
  3. Absence of antigens A and B in plasma
  4. Presence of antibodies, anti-A and anti-B, on RBCs
NEET (UG) 2021

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