In Tests with Animals, Stem Cells Transplanted into a Brain

question 331

Multiple Choice

In tests with animals, stem cells transplanted into a brain or spinal cord ________.

• A) functioned for a while, but slowly died off
• B) died almost immediately
• C) survived but did not function or replace damaged cells
• D) migrated to damaged areas and began to generate specialized neurons for replacement

---

Definitions:

Thyrohyoid

A muscle in the neck that depresses the hyoid bone and raises the larynx during swallowing and speaking.

Neck

The part of the body connecting the head to the rest of the body, containing structures of the digestive and respiratory tracts as well as major blood vessels and nerves.

Sternocleidomastoid

A muscle in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone, involved in facilitating rotation and flexion of the neck.

Semispinalis Capitis

is a muscle of the back located beneath the trapezius, playing a key role in extending, rotating, and bending the head backwards.