Fill in the blanks: The only bone of the arm is the _______. The forearm consists of the medial ______and the lateral_____.

Video transcript

Hey, everyone. Let's take a look at this question together. The bone that runs alongside the ulna and is located on the thumb side of the forearm is called, what is it? Answer choice. A, the humerus, answer choice B the radius, answer choice C the carpals or answer choice D the phalanges. Let's work this problem out together to try to figure out which of the following answer choices refers to the bone that runs alongside the ulna and is located on the thumb side of the forearm. So in order to solve this question, we have to recall what bones are found in the forearm, specifically what bone runs alongside the ulna and is located on the thumb side. Well, we can recall that the bone that we are looking for helps in the rotation of the forearm as well as the bone aids in various movements, which includes turning the hand to a palm up or a palm down position. And when referring to the bone that helps in the rotation of the forearm as well as being able to turn the hand to a palm up or palm down position, we know that the bone we are talking about is the radius, which is the other bone along with the ulna in the forearm. So answer choice B radius is the correct answer. And all other answer choices are incorrect since they are not bones found within the forearm that run alongside the ulna. Since answer choice, a humerus is found in the upper arm. Answer choice C, the carpals are found in the wrist and answer choice. D phalanges are the bones in the fingers and toes. So answer choice B is the only correct answer choice. I hope you found this video to be helpful. Thank you and goodbye.