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Home >> Physiology >> Cardiovascular Physiology >> Mcqs Page 3

(Single Best Answer) Question 21: Cerebral blood flow does not depend on ?

A) K⁺
B) CO₂
C) Blood pressure
D) Cerebral metabolic rate
Answer (Select an option above to get the answer):

(Single Best Answer) Question 22: QRS complex represents ?

A) Ventricular repolarization
B) Ventricular depolarization
C) Atrial repolarization
D) Atrial depolarization
Answer (Select an option above to get the answer):

(Single Best Answer) Question 23: Heart muscle all true except ?

A) Acts as syncytium
B) has multiple nuclei
C) has gap junctions
Answer (Select an option above to get the answer):

(Single Best Answer) Question 24: True regarding S4 is ?

A) can be heard by unaided ear
B) more than 20 hz
C) due to ventricular filling
D) due to ventricular ejection
Answer (Select an option above to get the answer):

(Single Best Answer) Question 25: Factor present in final common complement pathway ?

A) C4
B) C3
C) C5
D) Protein B
E) C2
Answer (Select an option above to get the answer):

(Single Best Answer) Question 26: Site of RBC formation in 20 year old healthy male ?

A) Flat bones
B) Long bones
C) Liver
Answer (Select an option above to get the answer):

(Single Best Answer) Question 27: Which one of the following is the correct statement regarding coronary food flow ?

A) Coronary blood flow is directly related to perfusion pressure and inversely related to resistance
B) Coronary blood flow is inversely related to perfusion pressure and directly related to resistance
C) Coronary blood flow is directly related to perfusion pressure and also to resistance
D) Coronary blood flow is directly related to both pressures and resistance
Answer (Select an option above to get the answer):

(Single Best Answer) Question 28: In which of the following a reduction in arterial oxygen tension occurs ?

A) Anaemia
B) CO poisoning
C) Moderate exercise
D) Hypoventilation
Answer (Select an option above to get the answer):

(Single Best Answer) Question 29: Distribution of blood flow is mainly regulated by the ?

A) Arteries
B) Arterioles
C) Capillaries
D) Venules
Answer (Select an option above to get the answer):

(Single Best Answer) Question 30: The vasodilatation produced by carbondioxide is maximum in one of the following ?

A) Kidney
B) Brain
C) Liver
D) Heart
Answer (Select an option above to get the answer):