MCQ
Heart beats are accelerated by
- ACranial nerves and acetylcholine
- BSympathetic nerves and acetylcholine
- CCranial nerves and adrenaline
- ✓Sympathetic nerves and epinephrine
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$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline 1.\,\,97\,\,percent\,\,of\,\,O_2\,\,is\,\,transported & p.\,\,Bicarbonate \\ \hline 2.\,\,70\,\,percent\,\,of\,\,CO_2\,\,is\,\,transported & q.\,\,RBC \\ \hline 3.\,\,100\,\,\,ml\,\,of\,\,oxygenated\,\,blood & r.\,\,4\,\,\,ml\,\, \\ \hline 4.\,\,100\,\,\,ml\,\,of\,\,deoxygenated\,\,blood & s.\,\,5\,\,\,ml \\ \hline \end{array}$