nervous system Flashcards
examination of propiocetpion, postural reactions
wheelbarrowing test
hopping test: on one leg; hemihopping
knuckling over test
placing reactions: tactile, visual (table )
extensor postural thrust reaction: when lowered to the ground an animal will detect an approaching surface and extend the limb towards it
classification of paralysis
by severity: paresis, paralysis
by affected klimbs: mono, tetra: all, paraparalysis: hind limbs, hemiparalysis
by muscle tone: spastic, atonic
by region: UMN, LMN
cranial nerves?? exam?
N. olfactorius
N. opticus: vision: pupillary light relfex, menace reflex, optical placing, falling cotton test, leading the animal to objects
N. oculomotorius; Anisocoria, Mydriases, miosis
Position of eyeballs: n. oculomotorius, n. trochlearis, n. abducens
n. trigeminus: Paralysis, tic: repeated contraction of chewing muscles - tic, trismus: tonic spasm of chewing muscles
N. trigeminus test
Corneal reflex, palpebral reflex: lateral and medial canthus
sagging jaw
N. facialis test;
threat reflex, palpebral reflex, corneal reflex, paralysis
- nose drawn to one side, sagging of upper eyelids, sagging of lids, sagging of ears
N. vestibulocchlearis:
calling, clapping outside of vision field - for hearing function test
exam of vestibular function of this nerve:
vestibular syndrome: ipsilateral head tilt, ipsilateral leaning and falling
nystagmus: mostly hoizontal, slow phase toward side of lesion
mental state uneffected
N. glossopharyngeus, N. vagus:
paralysis: swallowing problems, paralysis laryngealis - unilateral or bilateeral
swallowing of gag reflex test - with water
N. accessorius
Paralysis: sagging of head, atrophy of mucles on neck, shoulder
N. hypoglossus:
protrution and withdrawal of tongue after swallowing altered
Spinal reflexes evaluation
areflexia
hyporeflexia
normoreflexia
hyperreflexia
hyperreflexia with clonus
abnormal reflexes can be?
reflex irradiation: a reflex elicited in a larger area /muscle group then expected
contralateral reflex?
a reflex is elicited in response to a stimulus applied to the other side of the body
Proprioceptive reflexes to test
Extensor carpi radialis reflex
Triceps reflex
Biceps reflex
Pelvic limb reflexes: patellar reflex, achilles reflex
Nociceptive reflexes
Flexor reflex
perineal reflex
panniculus reflex
How to test extensor carpi radialis reflex