In flat, short, and irregular bones, for example, these tissues kinda look like a spongy bone sandwich on compact-bone bread.

例如，在扁平、短和不规则的骨骼中，这些组织看起来有点像紧凑型骨面包上的海绵骨三明治。

And your irregular bones are all the weirdly-shaped things like your vertebrae and pelvis, which tend to be more specialized and unique.

你的不规则骨骼是所有形状奇怪的东西，比如你的椎骨和骨盆，它们往往更专业化且独特。

But at least today we learned about the anatomy of the skeletal system, including the flat, short, and irregular bones, and their individual arrangements of compact and spongy bone.

但至少今天我们了解了骨骼系统的解剖学，包括扁平、短和不规则的骨骼，以及它们紧凑和海绵状骨骼的个体排列。

Irregular bones have complex shapes. They also vary in the amount of spongy and compact bone present. Such bones include the vertebrae and certain facial bones.

不规则骨形状复杂。它们松质骨和密质骨的含量也各不相同。这种骨骼包括椎骨和某些面颅骨。

The 33 irregular bones in your vertebral column start with your atlas vertebra — the one that holds up your skull, and is named for the Greek god Atlas, who held the world on his shoulders as a punishment.

在你的脊椎里有 33 块不规则的骨头，从你的颈椎骨开始——支撑你头骨的那块，以希腊神阿特拉斯命名（阿特拉斯把世界扛在肩上作为惩罚）。