ILA 8 Formative - Spinal Flashcards
What causes shingles and how does it present
Herpes zoster virus
Produces a rash that is usually unilateral and has a dermatomal distribution
Is the spinal cord apart of the PNS?
No
PNS consists of cranial and spinal nerves
The CNS contains the spinal cord and brain
Where does the spinothalamic tract deccusate
Within the spinal cord
Where does the corticospinal tract deccusate
Pyramids of the lower medulla
Where does the dorsal column deccusate
Medulla oblongata
Where does the anterior (ventral) spinocerebellar tract deccusate
Once in the spinal cord as part of the anterior white commissures
Then again in the superior cerebellar peduncle
Where does the posterior spinocerebellar tract deccusate
It does not deccusate
Which descending motor tract originates in the cerebral cortex and ends on LMNs in the spinal cord
Corticospinal
Which group of spinal nerves innervates ankle reflex
S1,2
Which group of spinal nerves innervates a bicep reflex
C5,6
Are Schwann cells or oligodendrocytes found in the PNS
Schwann cells
What does disruption of the dorsal column medial Lewis us pathway cause
Loss of fine touch, vibration, pressure and proprioception
What is a common cause of glove and stocking peripheral neuropathy
Diabetes
What information does the a) lateral and b) anterior spinothalamic pathway carry
a) pain and temperature
b) crude touch and firm pressure
The spinothalamic tract is the a)……. pathway from b)…… to c)…….
a) sensory
b) skin
c) thalamus
