The Primary Motor Cortex. Every voluntary movement you make is controlled through the primary motor cortex, or PMC, which is located in the back of the frontal lobe, just about at the top of your head.Signals in your brain are sent to the muscles, telling them to make a movement.he Primary Motor Cortex. Every voluntary movement you make is controlled through the primary motor cortex, or PMC, which is located in the back of the frontal lobe, just about at the top of your head.
What is a unit rate? A unit rate is a rate expressed in a quantity of one unit. A car traveling at a rate of 60 miles per hour, for example, is an expression of a unit rate. It describes the car's traveling rate over 1 hour of time.
rate 1. 1. the amount of a charge or payment with reference to some basis of calculation: a high rate of interest on loans. 2. a certain amount of one thing considered in relation to a unit of another thing: at the rate of 60 miles an hour. 3. a fixed charge per unit of quantity: a rate of 10 cents a pound. 4. degree of speed or progress: to work at a rapid rate. 5. assigned position in any of a series of graded classes; rating.