GENERAL HISTOLOGY

Detailed explanation-1: -The motor regions of the frontal lobe formulate the plan and command the movements re-quired to reach for the cup. The message to the muscles is carried by pathways from the frontal lobe to the spinal cord. Motor neurons of the spinal cord carry the message to the muscles of the hand and arm.

Detailed explanation-2: -The frontal lobes are the largest of the four lobes responsible for many different functions. These include motor skills such as voluntary movement, speech, intellectual and behavioral functions. The areas that produce movement in parts of the body are found in the primary motor cortex or precentral gyrus.

Detailed explanation-3: -The primary motor cortex is located in the precentral gyrus; the premotor area is more rostral. The pyramidal cells of cortical layer V (also called Betz cells) are the upper motor neurons of the primary motor cortex.

Detailed explanation-4: -In the rearmost portion of each frontal lobe is a motor cortex, which helps plan, control, and execute voluntary movement, or intentional movement, like moving your arm or kicking a ball.

Detailed explanation-5: -The primary function of the motor cortex is to generate signals to direct the movement of the body. It is part of the frontal lobe and is anterior to the central sulcus. It consists of the primary motor cortex, premotor cortex, and the supplementary motor area.