Final Answer:
Complete denervation results in a loss of nerve function and sensation while having more nerve endings increases sensitivity and responsiveness. In general, having more nerve endings is preferable for enhanced sensory perception and motor control.
Step-by-step explanation:
Complete denervation refers to the absence of nerve function in a particular area leading to a loss of sensation and motor control. Nerve endings are crucial for transmitting signals between the body and the central nervous system. In contrast having more nerve endings implies a higher density of sensory receptors allowing for increased sensitivity and responsiveness to stimuli.
To illustrate, consider the fingertip, an area highly sensitive to touch. If the fingertip undergoes complete denervation, the individual loses the ability to feel touch, pressure, or temperature in that area. On the other hand, having more nerve endings in the same region would enhance tactile sensitivity, enabling the detection of finer details and variations in stimuli.
In terms of motor control having more nerve endings distributed across a muscle allows for finer muscle control and coordination. Complete denervation however results in muscle paralysis and a lack of voluntary movement. The benefits of more nerve endings become evident in tasks requiring precise movements and feedback such as playing a musical instrument or typing on a keyboard.
In summary while complete denervation leads to sensory and motor deficits having more nerve endings enhances sensory perception and motor control. The balance between these factors is crucial for maintaining optimal functionality in different regions of the body.