Playing catch with your young son, you blithely mention, “Wow, you must have excellent Ruffini endings.” He replies, “No, Mommy! My Ruffinis are beginnings!” Both of you laugh, but you explain that Ruffini endings are very helpful to humans catching balls. How do they help?
a. They detect impact stress, like when a ball hits a hand or glove.
b. They detect pain when a ball hits the hand hard enough to hurt.
c. They detect skin stretch and deformation in joints, allowing for object gripping.
d. They detect deep pressure such as one feels when gripping a ball hard preparing to throw.
c. They detect skin stretch and deformation in joints, allowing for object gripping.
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What will be an ideal response?