Joints in anatomical positions

This is a HW question I have and I'm having a hard time finding information to help me answer it.

Student loves pretending that she’s a human cannonball.  As she jumps off the diving board, she assumes the proper position before she pounds into the water: head and thighs tucked against her chest; back rounded; arms pressed against her sides while her forearms, crossed in front of her shins, hold her legs tightly folded against her chest.  Use the proper anatomical terminology to describe the position of this student's back, head, and limbs.

Taken from Tortora A&P book

This is relating to a chapter on articulations and joints