THE CEREBELLUM

THE CEREBELLUM

• second largest part of brain
• surface folded into parallel ridges
• outer ridge is grey matter, inside is white matter which branches to all parts of cerebellum
• cerebellum exercises control over 1) POSTURE 2) BALANCE 3) FINE COORDINATION OF VOLUNTARY MUSCLE MOVEMENT
• it does this by recieving info from inner ear (for posture and balance)
• we could still move without cerebellum however movement would be jerky, uncontrolled and spasmodic

THE HYPOTHALAMUS

• found in middle of brain
• concerned with homeostasis (maintaining a constant internal environment)
• functions of hypothalamus include 1) REGULATION OF AUTONOMIC NERVOUS SYSTEM: heart rate, blood pressure, secretion of digestive juices, movements of the alimentary canal and diameter of the pupil in eye
• body temoerature
• food and water intake
• patterns of waking and sleeping
• contraction of the urinary bladder
• emotional responses: fear, anger, aggression, pleasure, contentment
• secretion of hormones and coordination of parts of the endocrine system via pituitary gland: regulating metabolism, growth, reproduction and response to stress

THE MEDULLA OBLONGATA

• the medulla oblongata is the continuation of the spinal cord 
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