Cervical Disc Disease Flashcards
What does the Sinuvertebral nerve innervate?
outer third of the annulus fibrosis
How much water is in the Anulus?
65% water
How much water is in the nucleus pulposis?
80% water
What is the most common cause of cervical radiculopathy
Foraminal encroachment
What cervical vertebrae has the highest prevalence of Cervical radiculopathy?
C7 (70%)
What are the most common sites of disc herniation?
C5-C6
What is the area of sensory disturbance with root pathology
Dermatome
What is the area where pain is experienced with root pathology.
Dynatome
What does an increased upper and lower limb reflexes or other upper motor neuron signs suggest?
Myelopathy
In regards to C5, what is the motor muscle? reflex? sensation?
Motor: Deltoid
Reflex: Biceps tendon
Sensation: lateral biceps
In regards to C6, what is the motor muscle? reflex? sensation?
Motor: wrist extensors
Reflex: Brachioradialis tendon
Sensation: Lateral forearm
In regards to C7, what is the motor muscle? reflex? sensation?
Motor: wrist flexors
Reflex: Triceps tendon
Sensation: Digits 3 and 4
In regards to C8, what is the motor muscle? reflex? sensation?
Motor: Finger flexors
Reflex: none
Sensation: medial forearm
In regards to T1, what is the motor muscle? reflex? sensation?
Motor: interossei
Reflex: none
Sensatin: medial aspect of biceps
