Final answer:
Hypoglycemia is not an intracranial cause for altered consciousness; it is a systemic condition. Intracranial causes include head injury, stroke, CNS infection, tumors, and increased intracranial pressure. A stroke is caused by disruption of blood to the brain.
Step-by-step explanation:
The condition hypoglycemia is NOT an intracranial cause for altered consciousness. Intracranial causes include conditions that are related to structural or biochemical changes within the skull, such as head injury, cerebrovascular accidents (CVAs or strokes), central nervous system (CNS) infections, tumors, and increased intracranial pressure. Hypoglycemia, which refers to low blood sugar levels, is a systemic metabolic condition that can affect brain function but does not originate from within the cranial cavity.
In relation to the subject, a stroke, or CVA, is caused by a disruption of blood to the brain, leading to a lack of oxygen and nutrients which can cause damage to brain tissue. On the other hand, the fight-or-flight response typically includes reactions such as pupil dilation and increased oxygen supply to the lungs, which are not triggered by a decreased body temperature, decreased pH of the blood, or nervous glycosuria. Furthermore, in cases of nervous system damage due to traumatic brain injury or spinal cord injury, endocrine-related body functions such as the ability to lower blood glucose levels or body heat regulation may be impaired.