Lumbosacral Plexus

Plexus Lumbalis and Plexus Sacralis

L1: iliohypogastric
ilioinguinal

L2: genitofemoral

L3: lateral femoral cutaneous
femoral

L4: femoral
obturator

L5: lumbosacral trunk
superior gluteal

S1: inferior gluteal
sciatic (common peroneal)

S2: sciatic (tibial)

S3: sciatic (tibial)
posterior femoral sutaneous

S4: pudendal

S5: pudendal

The Level of Consciousness

Glasgow Coma Scale:

Best motor response

Best verbal response

Eye opening



In most systems, the scale is scales out of 15

3 compatible with brain death

7 usually accepted as a state of coma

Hormone

Calcitonin: reduce the blood level of calcium and to inhibit bone resorption
Parathyroid hormone: raise the blood calcium level, and enhance bone resorption