שאלה משלב א׳ בנוירוכירורגיה · מועד 2025, שאלה 134

Correct: C — the posterior radicular arteries arise directly from the segmental spinal arteries, which themselves come from the posterior intercostal and lumbar arteries. Option A is wrong because the aorta gives the intercostal and lumbar arteries rather than the radicular arteries directly; option B is wrong because the posterior spinal arteries are supplied by, not the source of, the radicular arteries; option D names an intermediate vessel rather than the immediate parent.

מקור: chapter 4 84page arterial supply of spinal cord Spinal anatomy chap 304 2400 page Youmans