True. Lactic acid is caused by strenuous exercise. The lactic acid is formed because while working out, you don't receive as much oxygen.
The liver's main function is to process the nutrients absorbed from the small intestine
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Helps get rid of some germs that could cause disease or sickness.
The corticospinal tract carries motor signals from the primary motor cortex in the brain, down the spinal cord, to the muscles of the trunk and limbs. And The corticobulbar tract carries efferent, motor, information from the primary motor cortex to the muscles of the face, head and neck.
