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Your Amazing Brain: . The Inside Tour. Did You Know…?. Your brain contains 100 billion neurons and 60 trillion synapses (cortex). Did You Know…?. Your brain contains 100 billion neurons and 60 trillion synapses (cortex) The average adult brain weighs about 1.4 kg (3 lbs).
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Your Amazing Brain: The Inside Tour
Did You Know…? • Your brain contains 100 billion neurons and 60 trillion synapses (cortex)
Did You Know…? • Your brain contains 100 billion neurons and 60 trillion synapses (cortex) • The average adult brain weighs about 1.4 kg (3 lbs)
Did You Know…? • Your brain contains 100 billion neurons and 60 trillion synapses (cortex) • The average adult brain weighs about 1.4 kg (3 lbs) • Your brain makes up about 2% of body weight yet takes 20% of the body’s blood supply
Did You Know…? • Your brain contains 100 billion neurons and 60 trillion synapses (cortex) • The average adult brain weighs about 1.4 kg (3 lbs) • Your brain makes up about 2% of body weight yet takes 20% of the body’s blood supply • Brain does not fully mature until age 25-30 years
The Key Players: Frontal Lobe: reasoning, judgment, higher order thinking (NOT fully developed until 25-30 yrs) Temporal Lobe: hearing, speech Parietal Lobe: pain, pressure, touch, speech Occipital Lobe: vision
The Major Parts: thalamus meninges (3 layers) corpus collosum skull cerebrum hypothalamus pons pituitary gland cerebellum medulla oblongata spinal cord
The View from Below: Optic chiasma