What can stop a muscle contraction?

What can stop a muscle contraction? Muscle contraction usually stops when signaling from the motor neuron ends, which repolarizes the sarcolemma and T-tubules, and closes the voltage-gated calcium channels in the SR. Ca++ ions are then pumped back into the SR, which causes the tropomyosin to reshield (or re-cover) the binding sites on the actin […]

What is the importance of hoe?

What is the importance of hoe? A hoe is an ancient and versatile agricultural and horticultural hand tool used to shape soil, remove weeds, clear soil, and harvest root crops. Shaping the soil includes piling soil around the base of plants (hilling), digging narrow furrows (drills) and shallow trenches for planting seeds or bulbs. What […]

Are Sony DSLRs any good?

Are Sony DSLRs any good? When you see the specs of Sony DSLRs, nothing will impress you more than the frame rates. It is truly remarkable. For example, the Sony a77 can capture 12 frames per second of 24 megapixel images. While I certainly want to use that every day, it would be INCREDIBLE for […]

What was Douglas Mawsons first job?

What was Douglas Mawsons first job? In 1905 he was made a lecturer in petrology and mineralogy at the University of Adelaide. Mawson’s first experience in the Antarctic came as a member of Shackleton’s Nimrod Expedition (1907–1909), alongside his mentor Edgeworth David. Who went with Douglas Mawson to Antarctica? The 32-year-old Mawson left with two […]

What happened to T-Bone Walker?

What happened to T-Bone Walker? Walker’s career began to wind down after he suffered a stroke in 1974. He died of bronchial pneumonia following another stroke in March 1975, at the age of 64. Who first did Stormy Monday? T-Bone Walker How old is Tbone Walker? 64 years (1910–1975) Who did T-Bone Walkers influence? T-Bone Walker […]

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