Answer:
Our sensorimotor system appears to be influenced by the recent history of our movements. Repeating movements toward a particular direction is known to have a dramatic effect on involuntary movements elicited by cortical stimulation—a phenomenon that has been termed use-dependent plasticity. However, analogous effects of repetition on behavior have proven elusive. Here, we show that movement repetition enhances the generation of similar movements in the future by reducing the time required to select and prepare the repeated movement. We further show that this reaction time advantage for repeated movements is attributable to more rapid, but still flexible, preparation of the repeated movement rather than anticipation and covert advance preparation of the previously repeated movement. Our findings demonstrate a powerful and beneficial effect of movement repetition on response preparation, which may represent a behavioral counterpart to use-dependent plasticity effects in primary motor cortex.
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Answer:
Option). about 20 percent of the calcium ion required for contraction comes from outside the cell.
Explanation:
Calcium ions play an important role in cardiac muscle physiology. Calcium ions influx is responsible for plateau phase after depolarization. Calcium ions also play role in muscle contraction with the help of troponin (regulatory protein).
For contraction, about 20 percent of calcium ions are supplied from outside of the cell, while rest of the calcium ions are released from SR (sarcoplasmic reticulum).
Thus, the correct answer is 'forth option.'
Answer: Communities
Explanation:
Communities have a larger role to play in the ending of domestic violence. This is because as individuals, we can attempt to effect change but change usually only happens when multiple individuals bind together and speak with one voice. This is not unlike protests against the government. Take Sudan last year for example, for years select individuals had been speaking out against the Government and have found themselves arrested or missing. When the nation came out in it's thousands and marched and demanded change, the regime was overthrown. This shows that when the community comes out as one and speak against societal ills like Domestic violence, it has a better chance of being stopped.
Another way to look at it is that the Community usually has various social norms that are generally expected of members, if the community categorically classify Domestic Violence as a violation of norms then there is a better chance of ending it.
Answer:
C. Hypertension
Explanation:
Jack is most likely diagnosed with hypertension.
