英语语法分析

There was a mild mass effect on the brachialis and pronator teres muscles.

肿块轻度影响了肱肌和旋前圆肌，并向后压迫正中神经。

Objective: To study the morphological character of the brachialis branches of radial nerve.

目的：研究桡神经的肱肌支的形态特点。

Objective: to study the anatomical characteristics of the brachialis branches of radial nerve.

目的：研究桡神经肱肌支的解剖特点。