Anatomy Review Slides Lec. 20 Flashcards
How many SACRAL spinal nerve pairs?
5
Gray Matter Horns are equivalent of the ____ in the CNS.
Nuclei
Denticulate Ligaments
Helps stabilize the Spinal Cord
Meningeal coverings of the Spinal Cord
3 total
- Dura Mater
- Arachnoid
- Pia Mater
Lateral Horns
- Found in the THORACIC and Upper LUMBAR region
- Site of cell bodies of AUTONOMIC neurons
Enlargements of the Spinal Cord
- Areas with lots of NEURONS
- Cervical region (C3 - T1)
- Lumbar region (L1 - S2)
Epidural space
Space around the SPINAL Cord
- Not the Brain
White matter
- Consist of COLUMNS
- Consist of MYELINATED Tracts
- Has Post., Ant., and Lateral columns
Anterior Horns
Site of Cell Bodies of ALPHA motor neurons to Skeletal muscle fibers
Dura Mater
Tough Outer Layer
Where can you do a spinal tap?
Below L2
BRACHIAL Plexus span nerves ______?
C5 - T1
What is the Cauda Equina?
A bundle of nerves at the end of the spinal cord
How many THORACIC spinal nerve pairs?
12
How many COCCYGEAL spinal nerve pairs?
1
Pia Mater
Delicate Innermost Layer
How many CERVICAL spinal nerve pairs?
8
7 Cervical Vertebra
What Space contains CSF?
Subarachnoid Space
Arachnoid Layer
- Intermediate Layer
- Web-like
Filum Terminale
- Thin Filament of meninges tissue
- Holds the Spinal Cord
- NOT a NERVE
How many LUMBAR spinal nerve pairs?
5
CERVICAL Plexus span nerves ______?
C1 - C4
Gray matter are the _____ and the White matter are the _____ in the cross-sections anatomy of the Spinal Cord.
- Horns
- Columns
LUMBOSACRAL Plexus span nerves ______?
L1 - S4
Posterior Horns
Receive incoming SENSORY fibers
Conus Medullaris
End of the Spinal Cord Proper
