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What is the significance of loss of pain and temperature from the left side of the face and right side of the body?

This case applies to this question and the following 5 questions. A 60-year-old female with a history of myocardial (blood vessels that feed the heart muscles) blockages suddenly develops the following symptoms:-> She has difficulty smiling on the right side; her right eyelid cannot be closed, and her right brow cannot be raised. -> Facial pain and temperature are lost on the right. -> Taste near the tip of the tongue is diminished on the right. -> Pain and temperature sensation is lost on the left arm and leg. -> She reports dizziness, nausea, impaired balance, and poor coordination on the right. Fine touch and proprioception of the body are normal.The problems with smiling, raising her eyebrow and closing her eye are most likely due to lesion of what structure?

Identify the structure indicated by the red dotted line.

A patient is brought to the ER because of left arm weakness. On exam, the patient demonstrates: -> left lower facial paresis, but he can wrinkle his brow, -> a right gaze preference (i.e., eyes deviate to right), -> speech is relatively normal. Evaluation of strength reveals: -> moderate weakness of the left arm but normal strength in all other extremities. Additionally, the patient shows: -> diminished fine touch, proprioception, pain and temperature sensitivity for the left arm and face. A stroke in which of the following vessels is most likely the cause of the patient’s symptoms? 

The absence of pupillary responses in the left eye regardless of which eye is stimulated by the light indicates _______________.

This exact case applies to this and the following 5 questions. A 22-year-old male is brought to the ER with knife wounds and the following symptoms: -> initial flaccid paralysis of his right arm and leg, -> deficits in proprioception and vibratory sensation on his right side below the level of C6, and -> decreased pain and temperature sensation on his left side below the level of C4.A lesion in which of the following locations best accounts for the flaccid paralysis of the right extremities? Pick all that apply.

Which of the following DOES NOT cause Horner’s syndrome?

Identify the structure indicated by the tip of the red arrow.  

What is suggested by the combination of absence of pain and temperature sensation from both the right side of his face and the left side of his body?

Identify the origin of the majority of these axons.