Upper limb surface landmarks — Flashcards

Flashcard 1: The organization of the femoral region from lateral to medial is the _____

Answer: nerve-artery-vein-lymphatics (NAVeL)

Flashcard 2: What structure is formed by the decussation of internal arcuate fibers in the medulla and carries fine touch, vibration, and proprioception to the VPL nucleus of the thalamus?

Answer: Medial lemniscus

Extra: The medial lemniscus represents the second-order neurons of the dorsal column-medial lemniscus (DCML) system. These neurons originate in the nucleus gracilis and nucleus cuneatus, cross the midline as internal arcuate fibers in the medulla, and ascend to the ventral posterolateral (VPL) nucleus of the thalamus.

Flashcard 3: Which type of sensory receptor is found on finger tips and superficial skin? _____

Answer: Merkel discs

Flashcard 4: A fracture of the _____ clavicle is the most common clavicle fracture

Answer: middle third (what section?)

Flashcard 5: What are the contents of the femoral triangle? _____

Answer: Femoral nerve, artery, and vein

Flashcard 6: The trunks of the brachial plexus and subclavian artery pass through the anterior and middle _____

Answer: scalenes (scalene triangle)

Flashcard 7: 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 8: Palsy of the deep radial nerve as it travels through the supinator canal most commonly manifests with "_____ drop"

Answer: finger