Lecture 1 Flashcards
(28 cards)
Assessments of the neuro exam
- Mental Status
- Posture
- Gait
- CPs
- Cutaneous trunci
- Cranial nerves
- Spinal Nerves
- Pain
Posture
position of the head relative to the body
Ataxia is best seen from
behind the body
conscious proprioception tests are done how?
knuckling over the foot and testing to see if it corrects within 1 second; animals should be placed squarely
-hopping, hemiwalking, or wheelbarrowing
What does conscious propriocetion test?
afferent and efferent neural signals
spinal reflexes in the thoracic limbs
withdrawal reflex
pelvic limbs
patellar and withdrawal reflex
reflexes vs responses
reflexes do not go to the cortex but responses do go to the cortex
thoracic intumescence
C6-T2 - gives off nerves to the limbs
pelvic intumescence
L4 - S1
patellar reflex
hitting the patellar tendon looking for extension of the knee;
monosynaptic
what does the patellar reflex test?
L4-L6 spinal cord segments and nerve roots; femoral nerve
femoral nerve innervates what
quadriceps for extension of the stifle
withdrawal reflex
polysynaptic (interneurons)
what does the withdrawal reflex test?
Pelvic limb L6-S1 (sciatic nerve)
Thoracic Limb C6-T2 (multiple nerves)
muscles of flexion
Just because you can have withdrawal… you may not have…
deep pain
deep pain
positive sensation requires a cortical response such as crying biting and trying to get away
other spinal reflexes
biceps, triceps, extensor carpi, cutaneous trunci, cranial tibial
cutaneous trunci/panniculus reflex mechanism
pinch specific dermatones at the level of the hip
info travels up the spinal cord
travles to the lateral thoracic nerves
bilateral CT contraction
What innervates the cutaneous trunci
lateral thoracic (C8 - T1)
frontal lobe
motor cortex
parietal lobe
somatosensory
occipital
visual cortex
temporal
auditory, behavioral
