-Alternating Movement of Opposing Muscles
-Resting tremors in basal ganglia disorders
-As opposed to Intentional Tremor in cerebellar disorders
Sydenham’s Chorea
- Occurs around 5-13 years of age)
- Secondary to streptococcal infection
- Not very common
Athetosis
-Involuntary slow writhing (twisting) movement of limbs
-Varying degrees of hypertonia (excessive tone)
-Usually seen in lesions of the globus pallidus
Facilitatory Reticular Areas
-Upper and Lateral Brainstem
-Increases Muscle Tone in Extremities
Function of the Reticular Formation
Important for:
1. Arousal
2. Tonal Modulation
3. Pain Processing
4. Muscle Tone Regulation - Maintains Balance of Stimulation
5. Regulation of:
-Vomiting
-Coughing
-Cardiovascular Functions
-Respiration
-Speech Functions
