Clinical Anatomy — Flashcards

Flashcard 71: Which areas of the spinal cord are spared in a complete occlusion of the anterior spinal artery? _____ and Lissauer's tract

Answer: Dorsal columns

Flashcard 72: The optimal site for obtaining vascular access in the lower extremity during cardiac catheterization is the _____ artery below the inguinal ligament

Answer: femoral

Flashcard 73: GI tract diverticula classically arise where the _____ perforates the muscularis externa (weak point in colonic wall)

Answer: vasa recta

Flashcard 74: Muscles lost in Erb palsy include: 1. _____2. supraspinatus3. infraspinatus4. biceps brachii

Answer: deltoid

Flashcard 75: Intramuscular injections in the gluteal region should be given in the _____ quadrant or the ventrogluteal site (von Hochstetter triangle) to avoid injury to the sciatic nerve.

Answer: superolateral

Extra: The gluteal region is traditionally divided into four quadrants. The **superolateral quadrant** is the safe zone for dorsogluteal injections because it avoids the sciatic nerve (located medially and inferiorly) and the superior gluteal nerve (located medially). The **ventrogluteal site**, identified using the **von Hochstetter triangle**, is another safe alternative that is far from major neurovascular structures.

Flashcard 76: Loss of the _____ (muscle) in Erb palsy results in medial rotation of the arm.

Answer: infraspinatus

Flashcard 77: Posterolateral instability of the knee joint occurs when there is damage to the _____ collateral ligament, popliteofibular ligament and popliteus tendon.

Answer: lateral

Flashcard 78: Injury to the _____ nerve (C5-C7 (nerve roots)) is commonly due to upper trunk compression.

Answer: musculocutaneous

Flashcard 79: Which muscle layers are pierced during the insertion of an intercostal drain? _____ and the intercostal muscles.

Answer: Serratus anterior

Flashcard 80: Foot drop is characterized by loss of _____ and dorsiflexion (movements) of the foot.

Answer: eversion