Ginger was a happy, healthy 17-year-old girl. One day while sitting at the kitchen table with her family, she looked up with an odd expression, complained that her head hurt, dropped her fork, and fell off her chair as she lost consciousness. Her father caught her before her head hit the floor. Ginger regained consciousness at the hospital, where it was determined that she had suffered from a
ruptured brain aneurysm. An aneurysm results when a blood vessel wall becomes progressively thinner and weaker, and can ultimately rupture, depriving of blood the areas it normally supplies. Sometimes permanent brain damage results. Ginger seems to have all of her normal functions and cognitive abilities, except she cannot see. What areas did the ruptured blood vessel possibly supply with blood? If instead of blindness she could see normally but control of eye movement was abnormal, what areas may have been damaged by loss of blood?
What will be an ideal response?
For blindness, damaged areas may include the optic nerves or the occipital lobe of the cerebrum. For loss of normal eye movement, damage to the midbrain or the oculomotor or trochlear nerves may be responsible.
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Answer the following questions true (T) or false (F)
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Which labeled structure in the figure is a capillary?
a) A b) B c) C d) D e) E
Which of the following molecules are considered key molecules at metabolic crossroads?
A) glucose-6-phosphate, pyruvic acid, acetyl CoA B) glucose-6-phosphate, lactic acid, acetyl CoA C) acetone, beta-hydroxybutyric acid, ATP D) ATP, pyruvic acid, lactic acid