Junior (View All Rackets). Kids tennis rackets ranging from 19 to 26 inches in length for players between 2 and 12 years old. As a general rule, the appropriate size racket length for your child is the distance from finger tip to ground when standing upright.
The ring of muscle at the entrance to the stomach is the lower  esophageal sphincter. This muscle is normally contracted to close  the esophagus. At the lower end of the stoâ¦mach food passes through  the pyloric sphincter and into the duodenum of the small intestine. Making the world better, one answer at a time.
Examination of myotatic (deep tendon) reflexes. The muscle stretch (myotatic) reflex is a simple reflex, with the receptor neuron having direct connections to the muscle spindle apparatus in the muscle and with the alpha motor neurons in the central nervous system that send axons back to that muscle (Figure 8-1).