Which of the following structures is found most medially within the cubital fossa?

Question

BlackTom AI · Accepted Answer

To tackle this question, first recall the anatomical layout of the cubital fossa, which is the triangular depression on the anterior elbow. The contents are classically arranged from lateral to medial as tendon of the biceps brachii, the brachial artery, and the median nerve (the TAN mnemonic helps remember this order).

Option 1: Musculocutaneous nerve. This nerve typically travels laterally and anterior to the elbow and does not lie in the medial-most position within the cubital fossa. Its course is more superficial and lateral compared with the other contents in the fossa.

Option 2: Axillary artery. The axillary artery is located in the relatively proximal arm and shoulder region; it transitions to the brachial artery as it crosses the lower border of teres major, but it does not reside within the cubital fossa itself. Therefore this option is incorrect for the specified region.

Option 3: Brachial artery. The brachial artery is indeed a major vessel that traverses the cubital fossa, but within the fossa its position is medial to the tendon of the biceps and lateral to the median nerve, not the most medial structure.

Option 4: Median nerve. In the classic lateral-to-medial arrangement (TAN), the median nerve sits as the most medial structure in the cubital fossa, lying medial to the brachial artery and the biceps tendon. This makes it the correct choice for the question as stated.

Option 5: Tendon of Biceps Brachii m. The biceps tendon is the most lateral structure in the cubital fossa, not the medial-most one, so it cannot be the correct answer here.

Putting these observations together, the statement that the median nerve is found most medially within the cubital fossa aligns with the standard anatomical arrangement of its contents.

Which of the following structures is found most medially within the cubital fossa?

查看解析

登录即可查看完整答案

类似问题

From medial to lateral, what are the contents of the cubital fossa?

Which one of the following veins travels across the roof of the cubital fossa?

Which one of the following muscles forms the medial border of the cubital fossa?

The point lies on the terminal arm of an angle in standard position. What are the correct values of the following three ratios?

Which equation best describes this function?

The graph below represents the displacement (in cm) of the spring from equilibrium over time. Which equation best models this motion?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单