Why Is Treatment with Radiation Therapy for Polyostotic Fibrous Dysplasia

question 22

Multiple Choice

Why is treatment with radiation therapy for polyostotic fibrous dysplasia contraindicated?

• A) It is too severe of a treatment for a young child.
• B) An association exists with malignant transformation to osteosarcoma.
• C) Because of the defined borders of the lesions, surgery is the treatment of choice.
• D) The lesions remain asymptomatic and localized.

Determine reaction favorability based on ΔG, ΔH, and ΔS values.

Understand the relationship between reaction mechanisms, rate laws, and experimental determination of reaction rates.

Describe how the structure of molecules impacts their reactivity and stability.

Predict the effects of temperature on reaction rates and equilibria.

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Definitions:

Sympathetic Nervous System

Part of the autonomic nervous system that activates the body's fight or flight response to stress or emergency situations.

Digestive Activity

The process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body.

Sexual Arousal

The physiological and psychological state of being stimulated or excited sexually, which can lead to sexual desire and potentially sexual activity.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for physical activity by speeding up the heart rate, increasing blood pressure, and dilating the pupils, among other actions.