英语语法分析

The main blood supply to the scaphoid is from the radial artery.

舟骨的主要血供来自于桡动脉。

It is an effective operation method to treat nonunion of scaphoid bone.

该术式是治疗腕舟骨骨折骨不连的一种有效方法。

Mainly composed of skin and cartilage, it has lots of dips, each with its own name, such as the scaphoid fossa, triangular fossa and concha.

耳廓主要由皮肤和软骨构成，其上有许多凹陷倾斜的部分，每一个部分都有自己专属的名称，例如耳舟、三角凹、外耳等等。