What are Intrinsic and extrinsic skeletal muscles?

Intrinsic skeletal muscles are those that originate and insert within a specific region, such as the small muscles of the hand or foot, allowing for fine motor control and precise movements. In contrast, extrinsic skeletal muscles originate outside the region they act upon and are typically larger, providing gross motor functions; for example, the forearm muscles control hand movements. Both types of muscles work together to facilitate a wide range of movements and functions in the body.