QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Your arm's phalanges are (blank) to your humerus.
Please explain.
A. Proximal
B. Distal
C. Superficial
D. Superior
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Answer
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Step 1:: Understand the question
The question asks us to identify which bone of the arm is most proximal (closest) to the humerus, which is the long bone in the upper arm.
Step 2:: Recall the anatomy of the arm
The arm is made up of three main bones: the humerus, the radius, and the ulna. The humerus is in the upper arm, while the radius and ulna are in the lower arm (forearm).
Step 3:: Determine the relationship between the bones
The humerus connects with both the radius and ulna at the elbow joint. Since the humerus is in the upper arm, we need to determine which of the lower arm bones is closest to it.
Step 4:: Identify the correct answer
Between the radius and ulna, the ulna is more proximal to the humerus, forming the elbow joint with it. Therefore, the answer is (B) Distal, as the distal end of the ulna is what connects to the humerus.
Final Answer
The ulna's distal end is what is most proximal to the humerus.
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