-
Pedicle
lamina
- Pedicle- in between transv processes
- lamina- back side of foramen
-
SC
- Cerival- oval
- Thoracic- round
- Lumbar- cauda, triangular
- Sacrum/coccyx
-
Landmarks
- Conus medularis- L1 (L1/L2) --> lumbar punctur L3/L4
- top of iliac cres- L3/L4
- Dermatomes:
- Back of head C2
- Nipples T4Top foot L5
- Perianal S3
-
COrd Segments
- White matter inc as go rostral
- Gray matter more at cervical and lumbar
- *Cervical: big w & big g
- *Thoracic: good w & small g
- *L/S: small w & big g
-
Receptors
- Larger R field, more diff to discriminate exact pt of stimuli
- Transduction: stim alters perm of R memb->changes transmemb potential of R->production of generator potential->generation of AP, processed by CNS
-
Subconscious Sensory Pathways
- (alpha order)
- Cuneocerebellar Tract- above C8
- rise w/ fasic cuneatus synapse medulla, ips enters cerebell ICP
- Dorsal Spinocerebellar (C8-L2)
- synapse nucleus of Clarke, ips to cerebell ICP
- Ventral Spinocerebellar (below L2)
- X
at entry, asc to pons, X back, desc into cerebellum SCP
-
Deep Tendon Reflexes
- Biceps- C5/C6
- Brachioradialis- "
- Triceps- C7
- Knee-L3/L4
- Ankle- S1/S2
|
|