Understanding The Brain: Cerebellum, EEG And Sleep Explained

Understanding The Brain: Cerebellum, EEG And Sleep Explained

Question 1. Functions of cerebellum.
Answer:

• Regulation of body posture and equilibrium.
• Control of muscle tone and stretch reflexes. Coordination of movements.
• Regulation of automatic associated movements.
• Regulates movements of extraocular muscles.

Question 2. EEG [Electroencephalogram]
Answer:

Electroencephalogram Definition:

• The recording of electrical activities of brain is called electroencephalogram (EEG).

Electroencephalogram Significance:

• EEG helps in diagnosis of sleep disorders and neurological disorders like.
  • Epilepsy
  • Disorders of midbrain.
  • Subdural hematoma.

Electroencephalogram Waves:

1. Alpha rhythm.
2. Beta rhythm.
3. Delta rhythm.

Question 3. Sleep.
Answer:

Sleep Definition:

• The mental and physical relaxation either superifically or deeply with closed eyes in known as sleep.

Sleep Types:

1. Rapid eye movement sleep.

• Rapid conjugate eye movements occurs frequently.
• Dreams occurs during this period.
• Occupies 20-30% of sleep.
• This sleep is deep sleep.
• It plays an important role in consolidation of memory.

2. Non-rapid eye movement sleep.

• Eyeballs donot move.
• Dreams donot occur.
• Occupies 70-80% of sleep.
• It is followed by rapid eye movement sleep.