The period of nerve fiber Na+ channel inactivation is []
Absolute refractory period
B. Relative refractory period
C. Supernormal period
D. Sub normal period
E. Normal period
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Neuro-muscular junction transmission differs from synaptic transmission between neurons in that []
A. electrical transmission
B. bidirectional transmission
C. No time delay
D. fatigue
Excitation transmission is one-to-one
The minimum frequency of stimulation that can cause complete tetanus of muscle depends on []
A. stimulus intensity
B. threshold size
C. magnitude of muscle contractility
D. excitability of muscle
E. duration of single contractility
The terminal cisterna of the sarcoplasmic reticulum of skeletal muscle can be stored []
A. Na+
B. K+
C. H+
D. Cl-
E. Ca2+
The initial length of the muscle is determined by []
A. Passive tension
B. Preload
C. Afterload
Difference between preload and afterload
E. Sum of preload and afterload
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