Use the Following Information to Answer the Next Few Questions

question 63

Multiple Choice

Use the following information to answer the next few questions.
While deployed to Agfanistan, a soldier steps on a landmine and loses the lower portion of his right leg and also sustains a substantial brain injury. In time, doctors observe that the soldier is not acquiring new long-term memories since the explosion occurred; however, his recollection of times previous to the explosion is impeccable. Sometimes the soldier can feel a tingling sensation in his missing limb.
-Over time, the soldier's phantom limb syndrome subsides and he rarely "feels" his missing limb. This is an example of

• A)neural plasticity.
• B)somatosensory regeneration.
• C)autonomic arousal.
• D)reticular formation.
• E)sympathetic response.

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Definitions:

Thoracic Duct

The largest lymphatic vessel in the body, which drains lymph from the lower and left side of the body into the venous system.

Cisterna Chyli

A dilated sac at the lower end of the thoracic duct into which lymph from the lower limbs and abdomen drains.

Cardiovascular System

The organ system that circulates blood through the body, consisting of the heart, blood, and blood vessels.

Palatine Tonsils

A pair of soft tissue masses located at the rear of the throat, part of the immune system.