Flashcards in Final Exam Deck (65)
What does long term forward neck posture lead to?
Long term muscle strain
For every inch of forward head posture, the weight of the head increases by _____.
Loss of cervical curve stretches the spinal cord _______cm and can cause _____.
90% of stimulation and nutrition to the brain is generated by:
movement of the spine
Forward head posture will rob energy from your brain, causing problems in:
Some diseases caused by long term forward neck posture:
Lung and CV diseases, as well as GI
A neuron is composed of:
Other name for myelin
2 nerves involved in a synapse is called a ______, while more than 2 nerves involved is called a ______.
Nerve impulses from periphery nerves to the CNS. Mostly sensory
Nerve impulses from the CNS to the periphery nerves . Mostly motor
Network of interconnecting neurons connecting the afferent and efferent nerves
Medulla Spinalis, AKA
Where does the spinal cord begin and end?
Begins at the foramen magnum, ends at the conus medularis
2 major enlargements in the spine
cervical and lumbar
largest of the 2 enlargements
Cervical enlargement runs from __-__. Gives rise to the _____ plexus. THe largest circumference is located at _____.
Lumbar enlargement runs from __-__. Gives rise to the _____ and _____ plexus, and the ____ ____.
Largest circumference is at _____.
T9-L2 (conus medularis is)
Lumbar and sacral plexus and the Cauna Equina
Nerve cell bodies outside the CNS
Nerve cell bodies inside the IVF
Dorsal root ganglion
Nerve C1 arises between ____ and ____.
occiput and atlas
Nerve C8 arises between ___and ___
C7 and T1
Other than C-1 or C-8, where do all other nerves arise from?
Below their respective vertebra
Purpose of the meningies
To surround, protect, and stabilize the CNS
The 3 layers of meningies consists of:
Space that contains fat, loose CT, and extensive epidural venous plexus (Batson's Plexus)
The Dura Mater is very _____ (weak/tough) and continues to ____. Is attaches to the posterior aspect of the ____ ____ of __ (location). It also attaches to the PLL by means of ____ _____.
foramen magnum of C2/C3
Very small potential space between the dura mater and arachnoid. Has interstitial fluid.
Meningial layer. Middle layer, spider like. Completely avascular. Continues to S2