MCQ
Human heart is enclosed in a double walled sac called
- APeritome
- ✓Pericardium
- CPericardial sinus
- DPerineural sinus
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$I.$ Receptor sites on sarcolemma
$II.$ Nerve impulse
$III.$ Release of $\mathrm{Ca} \hat{\imath}$
$IV.$ Acetylcholine release
$V.$ Shortening of sarcomere
$VI.$ Synaptic cleft
$VII.$ Spread of impulse over sarcolemma on T-tubule
The correct option is
$(I)$. It consists of grey matter
$(II)$. It shows prominent folds
$(III)$. It consists of white matter
$(IV)$. It contains motor areas, sensory areas and association areas Codes