A. Lasts till cardiac contraction
B. Longer than refractory period in skeletal muscle
C. A phase of cardiac cycle in which heart cannot be stimulated by any amount of stimulus
D. Corresponds with duration of action potential
E. All of the above
Related Mcqs:
- The absolute refractory period of an action potential is due to _______________?
A. Insufficient neurotransmitter
B. Depletion of intracellular Na+
C. Inactivation of Na+ k+ ATPase
D. Voltage inactivation of the Na+ channel - Absolute period when whole heart is in diastole is______________?
A. 0.7 seconds
B. 0.3 seconds
C. 0.7 seconds
D. 0.4 seconds - Which of the following refractory is used to counteract most of the expansion________________?
A. Quartz
B. Cristobalite
C. Tridymite
D. Corundum - The normal absolute eosinophil count is_____________?
A. 40 to 440 cells/C.mm
B. 500 to 900 cells/C.mm
C. 1200 to1500cells/C.mm
D. 1500 to 2,000cells/C.mm - Disease characterized by insidious onset and by an absolute increased in number of circulating RBCs and in total blood volume ?
A. Leukopenia
B. Osler’s disease
C. Mediterranean disease
D. Aplastic anaemia - First heart sound occurs during the period of________________?
A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction - The teeth that are retained for the longest period of time are__________________?
A. Maxillary incisors
B. Maxillary canines
C. Mandibular incisors
D. Mandibular canines
E. B & D - During the Window period of patient with AIDS_______________?
A. ELISA IS – ve
B. Western Blot is – ve
C. Both are – ve
D. PCR is – ve - Which of the following represents the serologic evidence of recent Hepatitis B virus infection during window period ?
A. HBs Ag
B. IgM anti – HBc
C. Anti HBs
D. None of the above - Which of the following medications shortens the recovery period of primary Herpetic gingivostomatitis ?
A. Acyclovir
B. Ziduvidine
C. Kenalog in orabase
D. All of the above
