what does ACA supply
Anterior 2/3 of medial cerebral cortex (frontal & parietal lobes) + subcortical structures (such as basal ganglia
ACA characteristics
contralateral hemisensory loss
Contralateral hemiplegia
LE > UE
broca or non fluent aphasia
Apraxia
Abulia
Akinetic mutism
Slow, lack of spontaneity
Contralateral grasp reflex
Urinary incontinence
MCA supply
Lateral cerebral cortex (frontal temporal and parietal), basal ganglia, large portions of the internal capsule
MCA characteristics
PCA supply
Occipital lobe, medial & inferior temporal lobe, midbrain, upper brainstem, most of thalamus
PCA characteristics
Webers syndrome ?
Oculomotor palsy & contralateral hemiplegia
Wallenberg syndrome is also known as
Lateral medullary syndrome & posterior inferior cerebellar artery syndrome
Symptoms of Wallenberg syndrome:
Ipsilateral ataxia
Ipsilateral impaired sensation (face)
Contralateral impaired pain & thermal in UE & LE
Vertigo, nausea, vomiting, nystag.
Dysarthria, dysphonia, dysphagia (paralysis of laryngeal & palatal muscles + diminished gag reflex) Horners syndrome
Ipsilateral sensory loss of trunk & limb
Contralateral pain & temp loss
Horners syndrome symptoms
Miosis, ptosis, anhidrosis
Occlusion of small vessels in cerebral white matter, strongly associated with hypertensive hemorrhage and diabetic microvascular disease, what is this
Lacunar Stroke
Characteristics of lacunar stroke
Patients with lesions involving the cortex of the __________ hemisphere typically the _______ hemisphere demonstrate speech and language impairments (aphasia)
Dominant, Left
Patients with stroke in the _____ lobe commonly present with dysarthria, due to affection of the muscles that produce speech
frontal
Cognitive dysfunction are typically due to lesions affecting the______
Prefrontal cortex
Short term memory may be affected but long term memory is unaffected in stroke patients true or false
True
______ is known as an acute confusional state seen more commonly in acute care setting and results from several factors following an acute stroke (clouding consciousness or dulling of cognitive process and impaired alertness)
Delirium
Lesions of the brain affecting _____ and ______ and _____ can produce several emotional changes such as depression, apathy, euphoria, etc
Frontal lobe, hypothalamus, limbic system
Pseudobulbar affect (emotional incontinence)
Episodes of sudden uncontrollable laughing crying anger or other emotional displays
Difficulties in communication and processing information in a linear order + slow cautious anxious disorganized + more hesitant when trying next tasks (increased need for feedback and support) this are behavioral differences seen in
Left hemisphere lesions
Aware of their deficits and more realistic in their appraisal of their existing problems + difficulty processing verbal commands are behavioral differences seen in ?
Left hemisphere lesion
Demonstrate difficulty in spatial-perceptual tasks (grasping the idea of the task or activity) + described as quick and impulsive with poor judgement + tend to overestimate their abilities (acting unaware of their deficits) these are all behavioral changes seen in
Right hemisphere lesion
Safety is an issue for them + difficulty processing visual commands are signs seen in
Right hemisphere lesions
Flexion synergy components
1. Scapular >
2. Shoulder >
3. Elbow >
4. Forearm >
5. Wrist & fingers >
6. Hip >
7. Knee >
8. Ankle & toes >