Bacteria and viruses usually cause oral infections. They can affect the teeth, gums, palate (PAL-it, the roof of the mouth), tongue, lips, and inside of the cheeks.Simple oral infections are limited to the mouth and are different from oral lesions * , which are non-infectious and may be a sign of an illness that involves other parts of the body.hey can affect the teeth, gums, palate (PAL-it, the roof of the mouth), tongue, lips, and inside of the cheeks. Simple oral infections are limited to the mouth and are different from oral lesions * , which are non-infectious and may be a sign of an illness that involves other parts of the body.
gastrocnemius - the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot gastrocnemius muscle skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes
The innervation ratio represents the number of muscle fibers innervated by a single motor nerve fiber. A small motor unit might have an innervation ratio as low as 10:1. Some of the large motor units of the gastrocnemius have been estimated to be as high as 2000:1.The innervation ratio of its motor units confers certain qualities to a muscle, as we have already seen.olumn C shows the response of a soleus motor unit similar in size to the small gastrocnemius motor unit in column B. Remember that most of the motor units in the gastrocnemius muscle have shorter contraction times than most of the soleus units.