Mallet Finger (Definition) Mallet finger is caused by a tear of the extensor tendon at the joint closer to the fingertip. It happens most commonly from a trauma which causes sudden flexion of the joint. The patient will notice that a 'droop' is present with the fingertip and is unable to extend at the joint.
Touch ID. Touch ID is a fingerprint recognition feature, designed and released by Apple Inc., and is currently standard on the iPhone since iPhone 5S, as well as iPads since the iPad Air 2 and the MacBook Pro. In 2015, Apple introduced the faster second generation Touch ID beginning with the iPhone 6S, and later to the MacBook Pro in 2016.
Use Touch ID on MacBook Pro. With Touch ID on your MacBook Pro, you can quickly unlock your Mac and make purchases using your Apple ID and Apple Pay, all with your fingerprint. Start up your MacBook Pro by opening it or plugging it in. MacBook Pro models introduced in 2016 start up when you open their lids or connect them to power.