SACRAL PLEXUS
SACRAL PLEXUS
SACRAL PLEXUSThe Objective
To be able to draw and label all the anatomy of the sacral plexus
SACRAL PLEXUSThe Challenge
Superior Gluteal
Inferior Gluteal
Sciatic
Common FibularTibial
To Lumbar Plexus
Post. Fem. Cut. PudendalCoccygeal plexus
L4
L5
S1
S2
S3
S4
S5
Cocc 1
Nerve to Piriformis
Perforating Cutaneous
Posterior Divisions
Anterior Divisions
Nerve to Obturator internus and Superior Gemellus
Nerve to Quadratus Femoris and Inferior Gemellus
Nerve to Intertransversarii
Nerve to Intertransversarii
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Pelvic Parasympathetic Splanchnic (3)
SACRAL PLEXUSLearning Device
The story
Channeling Our Best Shakespeare
SACRAL PLEXUSLearning Device
Split the T down to 3SIPP the T (with an extra P)Two more Ps 1,2 2,3Reverse the Gs and add an E
SACRAL PLEXUSLearning Device
Split the T down to 3SIPP the T (with an extra P)Two more Ps 1,2 2,3Reverse the Gs and add an E
SACRAL PLEXUSLearning Device
Split the T down to 3
SACRAL PLEXUSLearning Device
Split the T
To Lumbar Plexus
L4
SACRAL PLEXUSLearning Device
Split the T down to 3 L5
S1
S2
S3
Sciatic
Common FibularTibial
Split the T
Posterior Divisions
Anterior Divisions
SACRAL PLEXUSLearning Device
S I P P the T (with an extra P)
The key: 3 levels start at L4, so L4, L5, S1
Superior Gluteal
L4
L5
S1
SACRAL PLEXUSLearning Device
S I P P the T (with an extra P)
The key: 3 levels start at L5, so L5, S1, S2
Inferior Gluteal
L5
S1
S2
SACRAL PLEXUSLearning Device
S I P P the T (with an extra P)
The key: 3 levels start at S1, so S1, S2, S3
Posterior Femoral Cutaneous
S1
S2
S3
SACRAL PLEXUSLearning Device
S I P P the T (with an extra P)
The key: 3 levels start at S2, so S2, S3, S4
Pudendal
S4
S2
S3
SACRAL PLEXUSLearning Device
Two more Ps 1,2 2,3
Nerve to Piriformis
Perforating Cutaneous
S1
S2
S3
S2
SACRAL PLEXUSLearning Device
Reverse the Gs
The key: Think opposite of Gluteals for Gemelli innervation Posterior to anterior switch and superior to inferior switch
L4
L5
S1
Nerve to Quadratus Femoris and Inferior Gemellus
SACRAL PLEXUSLearning Device
Reverse the Gs
The key: Think opposite of Gluteals for Gemelli innervation Posterior to anterior switch and superior to inferior switch
Nerve to Obturator internus and Superior Gemellus
L5
S1
S2
SACRAL PLEXUSLearning Device
And add an E
Coccygeal plexus
S4
S5
Cocc 1
SACRAL PLEXUSLearning Device
Now you can draw the plexusand label it Superior Gluteal
Inferior Gluteal
Sciatic
Common FibularTibial
To Lumbar Plexus
Post. Fem. Cut. PudendalCoccygeal plexus
L4
L5
S1
S2
S3
S4
S5
Cocc 1
Nerve to Piriformis
Perforating Cutaneous
Nerve to Obturator internus and Superior Gemellus
Nerve to Quadratus Femoris and Inferior Gemellus
SACRAL PLEXUSAdding the Fine Details
The divisions
L4
L5
S1
S2
S3
S4
S5
Cocc 1
Sciatic
Common FibularTibial
Posterior Divisions
Anterior Divisions
SACRAL PLEXUSAdding the Fine Details
Gray communicating rami
L4
L5
S1
S2
S3
S4
S5
Cocc 1
SACRAL PLEXUSAdding the Fine Details
Nerves to intertransversarii
L4
L5
S1
S2
S3
S4
S5
Cocc 1
SACRAL PLEXUSAdding the Fine Details
Pelvic parasympathetic splanchnic nerves
L4
L5
S1
S2
S3
S4
S5
Cocc 1
SACRAL PLEXUSThe Completed Plexus
Superior Gluteal
Inferior Gluteal
Sciatic
Common FibularTibial
To Lumbar Plexus
Post. Fem. Cut. PudendalCoccygeal plexus
L4
L5
S1
S2
S3
S4
S5
Cocc 1
Nerve to Piriformis
Perforating Cutaneous
Posterior Divisions
Anterior Divisions
Nerve to Obturator internus and Superior Gemellus
Nerve to Quadratus Femoris and Inferior Gemellus
Nerve to Intertransversarii
Nerve to Intertransversarii
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Gray Ramus
Pelvic Parasympathetic Splanchnic (3)