Which artery is located in the forearm and can be palpated at the wrist on the thumb side?

The radial artery is indeed the artery that is located in the forearm and can be palpated at the wrist on the thumb side. It runs along the radial side (the lateral side when in the standard anatomical position) of the forearm and terminates at the wrist. When assessing a patient's pulse in the wrist area, the radial artery is the most commonly used location because it is superficial and easily accessible. The position of the radial artery makes it an ideal site for checking vital signs, particularly in emergency situations when monitoring circulation is crucial.

In contrast, the ulnar artery, while also present in the forearm, is located on the opposite side of the wrist and is typically more difficult to palpate at that location. The brachial artery is situated higher up in the arm, primarily in the upper arm, and is not relevant to palpation at the wrist. The femoral artery is located in the thigh and has no relation to the forearm or wrist areas. Hence, the radial artery is the correct choice as it meets the criteria specified in the question.