APEX Spinal Cord Flashcards
The artery of adamkiewicz usually arises from the ___ side
Left
Occlusion of the artery of adamkiewicz can cause ___
Flaccid paralysis
Bowel/ bladder dysfunction
Loss of temperature and pain sensation
Preserved touch and proprioception
The artery of adamkiewicz arises from ___, and provides blood to the ___
The aorta, usually between T8-T12
ANTERIOR spinal cord
The spinal cord circulation (perfusion);
Posterior spinal arteries->
Anterior spinal artery->
Radicular arteries->
posterior 1/3 of the spinal cord
Anterior 2/3 of spinal cord
Spinal arteries in the thoracolumbar region
Classic signs of anterior spinal artery syndrome
Loss of B&B
Flaccid paralysis of lower extremities
Loss of pain and temperature
Preserved touch and proprioception
Anterior and posterior arteries (vertical supply) run the full length, but not all levels receive ____ (horizontal) supply. This can cause ____
Radicular arteries
Vulnerability to ischemia
What arteries supply the spinal cord
Anterior
Posterior
Aorta
Anterior Spinal
Radiuclar
Segmental
The posterior spinal artery supplies which spinal pathway with blood
Dorsal column
The anterior spinal artery supplies which 3 spinal pathways with blood
corticospinal
Autonomic
Spinothalamic
A ___ is a collection of cell bodies that reside outside of the CNS
Ganglion
A ___ is a group of fibers inside the white matter in the CNS that relay information up or down the spinal cord to and from the brain.
Tract
Differen spinal tracts
Sensory- cutaneous, gracilis, tract of lissauer, lateral spinothalamic tract, ventral spinothalamic tract
Motor tract- lateral corticospinal tract, ventral corticospinal tract
Grey matter is divided into ___ laminae
10
The ascending and descending tracts contain which part of the neuron?
White matter/ Axon
The dorsal column;
Transmits mechanoreceptive sensations (fine touch, vibration, pressure, proprioception)
2 point discrimination
Transmits sensory info fast
Consists of large, myelinated, rapid fibers
