Anatomy

Question 1

Superior Gluteal Nerve - Derivation, Location, Lesion/Deficits

Answer 1

Roots L4-S1, Superior Medial Aspect of Buttock (avoid this when giving injection), Trendelenberg Gait

Question 2

Gastric Varices in Fundus - Derive from where?

Answer 2

Thrombosis/^Pressure in SPLENIC VEIN (Chronic Pancreatitis, Gastric Tumor, Pancr. Tumor).

Cause back up pressure in the SHORT GASTRICS, which drain to SPLENIC. Varices in FUNDUS.

Question 3

Median Nerve courses bt what two structure in forearm?

Answer 3

Flexor Digitorum Superficialis and Flexor Digitorum Profundus

Question 4

What structures pass thru Greater Sciatic Foramen? What take up the most of its volume?

Answer 4

Piriformis Muscle

Question 5

Interscalene Nerve Block - when is it used? What muscle might it paralyze transiently?

Answer 5

Used for procedures on shoulder and arm. Paralyzes the DIAPHRAGM muscle by anesthetizing the PHRENIC NERVE (ROOTS C3-C5)

Question 6

What is the location of the skull where the Frontal, Temporal, Parietal, and Sphenoid bones meet?

Answer 6

Pterion

Question 7

Fracture of Pterion can cause laceration of what artery? What does it branch from ?

Answer 7

Middle Meningeal Artery from Maxillary Artery….from External Carotid.

Question 8

Which nerve innervates Anterolateral Abd Wall, and what does its branches innervate?

Answer 8

Iliohypogastric - derived from L1

Anterior Branch innnervates skin of pubic region, can be damaged during surgery (i.e. appendectomy)