What is the function of pin bones a goat?

Goats don't have pin bones. "Pin bones" is a colloquial term for the ischial tuberosities, which are bony prominences on the pelvis.

The ischial tuberosities are important for a number of reasons:

* Support: They provide a point of attachment for muscles that help support the hindquarters and control movement.

* Weight bearing: They bear weight when the goat is sitting or lying down.

* Muscle attachment: They serve as attachment points for various muscles in the hindquarters, including those involved in locomotion, hip extension, and tail movement.

So, while goats don't have "pin bones" specifically, the ischial tuberosities play a vital role in their skeletal structure and locomotion.