Sunkist Navel Orange (1 serving) 1  Calories: 80, Fat: 0g, Carbs: 21g, Protein: 1g. 2  Calories: 80, Fat: 0g, Carbs: 0g, Protein: 0g. 3  Calories: 100, Fat: 0g, Carbs: 21g, Protein: 1g. 4  Calories: 64, Fat: 0g, Carbs: 16g, Protein: 1g. 5  Calories: 0, Fat: 0g, Carbs: 0g, Protein: 0g. 6  Calories: 80, Fat: 0g, Carbs: 21g, Protein: 1g.
Cerebrospinal fluid (CSF) Cerebrospinal fluid (CSF), clear, colourless liquid that fills and surrounds the brain and the spinal cord and provides a mechanical barrier against shock. Formed primarily in the ventricles of the brain, the cerebrospinal fluid supports the brain and provides lubrication between surrounding bones and the brain and spinal cord. When an individual suffers a head injury, the fluid acts as a cushion, dulling the force by distributing its impact.
Such injuries usually do not involve loss of consciousness (being knocked out). More serious brain injuries may occur with or without a skull fracture as a result of impact trauma. The brain is surrounded by a liquid called cerebrospinal (se-REE-brospy-nal) fluid (CSF). The CSF acts as a cushion to absorb some of the force of impact.