1 Motor neurons (motoneurons) carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body. 2  Receptors sense the environment (chemicals, light, sound, touch) and encode this information into electrochemical messages that are transmitted by sensory neurons.
The all-time single-season record for the lowest ERA, according to www.mlb.com, the official website of Major League Baseball, is held by Dutch Leonard, who in 1914 had an earned run average of 0.96, pitching 224.2 innings with a win-loss record of 19-5.
Top 10 Worst Career Batting Averages in MLB History. Major League Baseball has seen some really bad hitters over the years. There are many hitters in todayâs game that arenât good at putting the ball in play for a hit. Adam Dunn for example has a career average of .238 and ranks in the top 15 of worst hitters of all time. There are other hitters like Mark Reynolds and Carlos Pena who are even worse than Dunn but there are ten other players who make the list of the worst hitters in MLB history.