MCQ
The sinu-auricular valve occurs
- AIn the sinus venosus
- ✓In the edges of sinu-auricular aperture
- CIn the truncus arteriosus
- DAt the auriculo-ventricular aperture
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$(I)$ It is not autoimmune disorder
$(II)$ Affect neuromusculler junction
$(III)$ Occured due to low $Ca^{++}$ in body fluid
$(IV)$ Paralysis of skeletal muscle is symptome of myasthenia gravis