Before Beginning Orthodontic Treatment, a Patient May Have Her Wrist

question 67

Multiple Choice

Before beginning orthodontic treatment, a patient may have her wrist and hand x-rayed to determine her stage of growth. What feature of the long bones will the orthodontist use to assess this?

• A) Osteon
• B) Periosteum
• C) Spongy bone
• D) Epiphyseal plate
• E) Compact bone

---

Definitions:

Human Systemic Circuit

The part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.

Lungs

Pair of respiratory organs situated in the chest of vertebrates, responsible for oxygen intake and carbon dioxide expulsion.

Liver

A vital organ in vertebrates responsible for detoxification, protein synthesis, and production of biochemicals necessary for digestion, among other functions.

Human Plasma

The clear, straw-colored liquid portion of blood that remains after red blood cells, white blood cells, and platelets have been removed.