Your first thoracic vertebrate aka T1 controls the nerves in your arms. Therefore, I would go with 'Pushing' as it requires your arms to do it.
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Lesioning clusters of brain cells is a surgical way of injuring a part of the brain to regain or improve a patient's quality of life or function. Which part of the cells will depend on what disease the patient is struggling from. This might result to damaging other parts of the body, as well as losing the sense of vision.
Note that Facilitated diffusion , Active transport and Osmosis are three different ways of transporting substances across the cell surface membrane.
Facilitated diffusion is the movement of a substance from high to low concentration , similar to simple diffusion , but due to the complexity of the cell surface membrane , polar molecules and ions cannot just pass like that , so they pass through specific carrier and channel proteins in the cell surface membrane and so we call it facilitated diffusion.
For Active transport , it's the movement from low to high concentraion using energy from ATP
For Osmosis , it's totally different . You only name osmosis when its all about water . Its the net movement of water from high water potential to low water potential through partially permeable membrane .
If you're doing AS , you'll be familiar with Endosmosis and Exosmosis.