The marginal cost curve is U-shaped. For the first 4 Stuffed Amigos, marginal cost declines from $5 to a low of $1.50. However, for the production beyond 6 Stuffed Amigos, marginal cost increases.
Stretch Reflex. The stretch reflex is one of the simplest reflexes which contract a muscle that is being stretched. The stretch reflex is mediated through a monosynaptic arc and it contributes to the maintenance of steady standing posture and to coordinate muscle movement.
What Is the Primary Motor Cortex? Every voluntary movement you make is controlled through the primary motor cortex (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.