Final answer:
False, Posterior tongue strength is not 5-10% lower than anterior tongue strength.
Step-by-step explanation:
False. Posterior tongue strength normative data is not 5-10% lower than anterior tongue strength.
Tongue strength can vary depending on the specific muscles involved and the measurement techniques used. However, there is no consistent pattern suggesting that posterior tongue strength is lower than anterior tongue strength by a certain percentage.It is important to note that tongue strength can be influenced by various factors such as age, health conditions, and individual variations.