In total this process involves your external ear, middle ear, inner ear, brainstem and brain.

总的来说，这个过程涉及你的外耳、中耳、耳、脑干和大脑。

Our external ears funnel sounds inward, but many owls use their whole faces to do this.

我们的外耳会将声音向传送，但许多猫头鹰用整张面庞将声音由外传。

This ultra-sensitive, translucent, and slightly cone-shaped membrane of connective tissue is the boundary between the external and middle ear.

这种超敏感、透明、略呈锥形的结缔组外耳和中耳之间的边界。

Sphenodontians had two openings in the skull behind their eyes, no external ears, and a fixed jaw bone.

蝶齿兽在眼睛后面的头骨上有两个开口，没有外耳和固定的下颌骨。

Plus they have external ears, and a moveable bone in the upper jaw that allows for a wider gape.

此外，它们还有外耳，上颌有一块可移动的骨头，可以张开更大的嘴巴。

It also connects the ribs to the sternum (breastbone) and provides a structural base for the nose and the external ear.

肌肉系统使身体得以移动，其收缩产生的热量有助于（机体）保持恒定的体温。

The ear is divided into 3 parts: 1. External ear 2. Middle ear 3. Internal ear The external ear is again divided into 3 parts which will make it easier to remember.

耳朵分为 3 个部分：1.外耳2.中耳3.耳为了方便记忆，外耳再次被分成 3 个部分。