Describe the pathophysiology of primary and secondary traumatic brain injury.

What will be an ideal response?


TBI-related injuries to the brain have been classified as primary and secondary. The primary brain injury results from the initial penetration or mechanical thrashing of the brain against the interior of the skull, leading to lacerations and crushing of brain tissue. Secondary injuries are those occurring due to the physiological changes that occur during the aftermath of the initial injury. These often include cerebral edema, hemorrhage, hematoma, and infection. These changes can adversely affect brain function by leading to rising intracranial pressure and impaired blood flow. Ultimately, it is the secondary injuries that can lead to destruction of neurons, glia, and axons.

Nutritional Science

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According to the main nutrition-related goal of Healthy People 2020, Americans should ________.

A. reduce young children's exposure to substances in foods that cause allergies B. increase their use of dietary supplements that contain vitamins and minerals C. learn how to obtain nutrition information from reliable sources D. reduce the risk of chronic diseases by consuming a healthy diet

Nutritional Science

What is the first organ to receive carbohydrates absorbed from the intestine?

A) ?heart B) ?liver C) ?pancreas D) ?skeletal muscle

Nutritional Science

A disease characterized by high blood glucose levels due to the body's inability to use insulin normally is called:

a. juvenile diabetes. b. high triglyceride syndrome. c. type 2 diabetes. d. chronic inflammation.

Nutritional Science

Food insecurity exists when a person:

A) does not have adequate physical, social, or economic access to food. B) has difficulty making decisions about which foods to purchase or eat. C) lacks confidence in preparing meals. D) has an irrational fear of trying new foods.

Nutritional Science