Neuroanatomy USMLE Step 1 Practice Question

A 19-year-old male is brought to the emergency department after sustaining a focal blow to the left temporal region during a motor vehicle collision. He was initially alert and conversant at the scene. En route to the hospital, his mother reports he seemed fine, but upon arrival 45 minutes later, he is increasingly drowsy and complains of a severe headache. On examination, his blood pressure is 165/98 mmHg, heart rate is 105 bpm, and respirations are 22/min. His right pupil is 6 mm and sluggishly reactive to light, while the left pupil is 3 mm and briskly reactive. Motor examination reveals 5/5 strength throughout bilateral lower extremities. A non-contrast CT of the head demonstrates a hyperdense crescent-shaped collection between the skull and cerebral cortex, with mass effect on the lateral ventricle and midline shift. Which of the following vascular structures was most likely injured?