Lower abdominal cross-sections — Flashcards

Flashcard 1: Which artery supplies the regions of the hindgut? _____

Answer: Inferior mesenteric artery

Flashcard 2: The psoas muscle combines with the iliacus muscle around the level of the _____ ligament to form the iliopsoas muscle

Answer: inguinal

Flashcard 3: Which artery, typically arising from the vertebral artery, supplies the lateral medulla and the posteroinferior cerebellum?

Answer: Posterior inferior cerebellar artery (PICA)

Extra: Occlusion of the PICA (or its parent vertebral artery) leads to Lateral Medullary (Wallenberg) syndrome. This presents with ipsilateral cerebellar signs, Horner syndrome, and sensory loss (ipsilateral face, contralateral body).

Flashcard 4: What embryological structure is the lower (distal) 2/3rd of the vaginal canal derived from?_____

Answer: Urogenital sinus

Flashcard 5: Arcuate arteries of the kidney further branch into _____ arteries

Answer: interlobular

Flashcard 6: What vertebral level does the gonadal artery branch off the aorta? _____

Answer: L2

Flashcard 7: What vertebral level does the inferior mesenteric artery branch off the aorta? _____

Answer: L3

Flashcard 8: The interlobular arteries of the kidney divide into the _____

Answer: afferent arterioles

Flashcard 9: What female structure is a derivative of the gubernaculum and travels through the inguinal canal? _____

Answer: round ligament of the uterus

Flashcard 10: _____ is identified as number 6 in the cross-section of the spine.

Answer: Central canal of the spinal cord