Lateral wall of nasal cavity has:
Mnemonic: SPIN
1. Superior meatus: Posterior ethmoidal sinus
2. Inferior meatus: Nasolacrimal duct
The sphenoidal sinus drains into spheno-ethmoidal recess (superior to superior concha).
All others drain into middle meatus:
Mnemonic: AM/FM
The classification system for closed fractures is based on the physiologic concept that the energy imparted to the bone (and the resultant fracture pattern) directly correlates with the energy transferred to the surrounding soft tissues. Grade Soft tissue injury Fracture Compartment C0 Absent or Negligible Simple (Spiral) Soft and/or Normal…
While everyone is busy talking about the brachial plexus – lumbosacral plexus (the origin of nerves that supplies everything below the umbilicus) seems to be bit under-rated. Formation of Lumbosacral Plexus Ventral rami of L1-S4; has 2 components – Lumbar plexus (L1-L4) – forms within psoas major anterior to lumbar…
HIV Replication and Antiretroviral Mechanism of Action Mnemonic: AFRITAB 1. Attachment (to CD4 cells) 2. Fusion (enters CD4 cells and dump it’s contents – RNA and reverse transcriptase) 3. Reverse transcription (1 strand RNA becomes 2 strand DNA) 4. Integration (HIV DNA integrates into human’s CD4 cell’s DNA) 5. Transcription…