Question : Assertion : Thigh muscle can get thired but not the muscles ventricle of heart. Reason : Muscles of thigh are voluntary whereas that of heart are involuntary muscles.

Question : Assertion : Thigh muscle can get thired but not the muscles

1.	Question : Assertion : Thigh muscle can get thired but not the muscles ventricle of heart. Reason : Muscles of thigh are voluntary whereas that of heart are involuntary muscles.
Answer» If both the assertion and the reason are true and the reason is a correct explanation of the assertion If both the assertion and reason are true but the reason is not a correct explanation of the assertion If the assertion and reason are false If the assertion is false but reason is true Solution :The THIGH muscle are the striated muscle which soon get fatigued due to overwork. These muscle show fast contractions and then tire immediately due to accumulation of LACTIC acid. The muscle of heart wall are the CARDIAC muscles which are unfatiguable and show rhythmic and AUTOMATIC contractions. They have specialised regions of the cell membranes which function as boosters for muscle contraction waves. Thigh muscles are called voluntary muscle because they can be moved at the will of organism whereas heart mucsles can't be moved at one's will and THEREFORE are involuntary.