NBDE Part 1 Practice Exam Series 56 – Physiology Study Material

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NBDE Part 1 Practice Exam Series 56

Question 1: Which of the following statement is correct regarding Bainbridge reflex?

It is also known as atrial reflex.

It is initiated by excess of blood volume in the right atrium which leads to increased blood flow to lungs in 2-3 heart beats.

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [A]

NBDE Part 1 Practice Test Series 1

NBDE Part 1 Practice Test Series 2

NBDE Part 1 Practice Test Series 3

Question 2: What percentage of blood volume is present in the systemic veins?

A. 7%

B. 9%

C. 40%

D. 64%

Answer

Answer: [D]

Question 3: The blood resistance is inversely proportional to which of the following parameter according to Posseult’s law?

A. Viscosity

B. Radius of blood vessel

C. Length of the blood vessel

D. Both A and C

Answer

Answer: [B]

Question 4: what is the pH of venous blood?

A. 6

B. 7

C. 7.36

D. 7.41

Answer

Answer: [C]

Question 5: Which of the following hematologic condition is seen when substitution of valine for glutamic acid take place in beta chain of hemoglobin?

A. Thalassemia

B. Sickle cell anemia

C. Hemophilia

D. Pernicious anemia

Answer

Answer: [B]

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