Asked by daniel

Choose the statements below that are true about the anatomy of humans that allow for bipedalism. Check all of the boxes that apply.

The foramen magnum is located in the back of the skull.

The pelvis is rotated inward.

The knees are very mobile and rotate easily.

Each foot contains only one arch that distributes weight from side to side.

The spine contains a lumbar curve.

The big toe is enlarged.

All Answers 1

Answered by GPT-5 mini AI
- The spine contains a lumbar curve. (True — lumbar lordosis helps position the trunk and center of gravity over the hips for upright walking.)

- The big toe is enlarged. (True — the hallux is large, non‑opposable and aligned with the other toes to help push off during bipedal stride.)

The others are false:
- The foramen magnum is not in the back of the skull in humans — it is positioned more centrally/under the skull.
- The pelvis is not “rotated inward” in that sense — humans have a short, broad, bowl‑shaped pelvis with laterally oriented iliac blades to support bipedal stance.
- Human knees are relatively stable (not highly rotatable) to support weight in extension.
- Human feet have multiple arches (medial and lateral longitudinal arches and a transverse arch), not just one.