Tea tree oil is able to cure dandruff and itchy scalps because the oil contains moisturizing benefits in addition to its anti-inflammatory, antibacterial, antifungal, and antiseptic properties. It also penetrates any blockage between your skin and sebaceous glands while screaming âBye Felicia!!!â to gross pore cooties.
Anatomy Explorer. Full Pronation/Supination Description. [Continued from above] . . . Two muscles in the forearm, the pronator teres and pronator quadratus, work together to achieve pronation by pulling on the radius bone of the forearm. The radius is specially designed to rotate at the elbow and wrist joints around the other forearm bone, the ulna. During pronation, the distal end of the radius rotates around the ulna from its position on the lateral side of the wrist to the medial side of the wrist. This action turns the hand, wrist, and forearm almost 180 degrees so that the palm faces posteriorly or inferiorly, depending on the position of the arm.
Just think of a top, or record, or wheel. All these things spin around a center point which we call an axis. This type of motion is called rotation, so the amount of time it takes an object to rotate is called a rotational period. It takes the Earth 23 hours, 56 minutes to rotate on its axis. We call the rotational period of Earth a day. Mars takes just a little longer to rotate, at 24 hours, 37 minutes. The Moon is much slower than either Earth or Mars. It takes over 655 hours for the Moon to turn just once on its axis--that's more than 27 days! Second, all the planets and moons in our solar system also move around other things.