Session 5 Plus Plexus Quiz Q Flashcards
How many cervical vertebrae
7
What is characteristic for all cervical vertebrae
Transverse foraminae
Where does the cauda equina begin
L1
What is characteristic of thoracic vertebrae
Long, slanted spinous process
What is derived from sclerotomes
Vertebrae and ribs
What symptoms will a patient with a prolapsed vertebral disc in between C4/C5 have
Reduced sensation in lateral aspect of upper arm
What is supplied by L4 dermatome and myotome
Lateral calf sensation and abduction of the hip
When does neurulation occur
weeks 3-4
Which 3 nerves have a contribution from the L3 spinal nerve
Lateral cutaneous nerve, obturator nerve, femoral nerve
Which nerve has a contribution from the T12 spinal nerve
Iliohypogastric
What are branches of the femoral nerve
Saphenous nerve and anterior cutaneous nerve
What are branches of the sciatic nerve
Common peroneal and common fibular
Spinal nerves that contribute to the fibular portion of the sciatic nerve
L5, S1, S2
Only nerves of sacral plexus with no sensory functions
Inferior and superior gluteal nerves
Which bony landmark do all of the peripheral nerves of the sacral plexus travel through
The greater sciatic foramen
what is the least common method of diagnosis for spondylosis
Ultrasound scan
What is the most common condition involving the back that is relieved by rest
Mechanical back pain
What is the most common cause of spinal infection
Haemotogenous spread
Compression of L5 spinal nerve root causes pain that radiates to
Lateral thigh/leg and dorsum of foot
What is the name of the condition involving osteoarthritis of the intervertebral discs of the cervical and lumbar regions
Spondylosis
Which symptom only occurs if the thoracic cord compression is at T5
Reduced chest expansion on inspiration
What’s a Jefferson’s fracture
Fracture of C1 vertebrae caused by axial loading on top of head (pain and no neurological symptoms)
What is a Hangman’s fracture
Through pars interarticularis of C2 axis, through forcible hyperextension of the neck
Which ligament is sometimes damaged by a Jefferson’s fracture
Transverse ligament - holds 2 sides of atlas together
Which nerve root of sciatic nerve is affected:
Pain radiating from back, down back of leg, to sole of foot
S1
Which nerve root is most likely to be compressed in a disc prolapse of L5/S1
Traversing root - S1
what level has disc herniation occured:
Numbness of medial leg and ankle, foot drop
L3/L4
L3 is last in tact dermatome, traversing nerve root most commonly affected in lumbar spine so L3/L4 would impact L4 nerve root. Loss of foot drop = L4 not working
What is the first spinal ligament a needle passes through in a lumbar puncture
Supraspinous ligament
Sciatica with pins and needles in sole of foot suggests which nerve root is involved
S1
