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The Human
Brain
THE FUNCTIONS OF THE BRAIN
THE FUNCTIONS OF THE BRAIN
• The human brain is a complex organ that allows us to think, move, feel, see, hear, taste, and smell.
THE FUNCTIONS OF THE BRAIN
• The human brain is a complex organ that allows us to think, move, feel, see, hear, taste, and smell.
• It controls our body, receives information, analyzes information, and stores information (our memories).
THE FUNCTIONS OF THE BRAIN
• The human brain is a complex organ that allows us to think, move, feel, see, hear, taste, and smell.
• It controls our body, receives information, analyzes information, and stores information (our memories).
• The brain produces electrical signals, which, together with chemical reactions, lets the parts of the body communicate.
THE FUNCTIONS OF THE BRAIN
• The human brain is a complex organ that allows us to think, move, feel, see, hear, taste, and smell.
• It controls our body, receives information, analyzes information, and stores information (our memories).
• The brain produces electrical signals, which, together with chemical reactions, lets the parts of the body communicate.
• Nerves send these signals throughout the body.
THE FUNCTIONS OF THE BRAIN
• there are 100,000 miles of blood vessels in the brain
THE FUNCTIONS OF THE BRAIN
• there are 100,000 miles of blood vessels in the brain
• the brain can live for 4-6 minutes w/o oxygen, 5-10 minutes there is permanent damage
SIZE OF THE HUMAN BRAIN
• The average human brain weighs about 3 pounds.
• At birth, the human brain weighs less than a pound.
• The human brain reaches its full size at about 6 years of age.
• Humans have the largest brain to body size.
Parts of the Brain
Parts of the Brain
Parts of the Brain
• The cerebrum is the largest part of the brain.
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes• frontal lobe: deals with reasoning, movement,
parts of speech, emotions
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes• frontal lobe: deals with reasoning, movement,
parts of speech, emotions• parietal lobe: movement, perception of
stimuli, recognition
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes• frontal lobe: deals with reasoning, movement,
parts of speech, emotions• parietal lobe: movement, perception of
stimuli, recognition• occipital lobe: visual processing
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes• frontal lobe: deals with reasoning, movement, parts
of speech, emotions• parietal lobe: movement, perception of stimuli,
recognition• occipital lobe: visual processing• temporal lobe: memory, speech
Parts of the Brain
• The cerebrum is the largest part of the brain.• Divided into 4 parts called lobes• frontal lobe: deals with reasoning, movement, parts
of speech, emotions• parietal lobe: movement, perception of stimuli,
recognition• occipital lobe: visual processing• temporal lobe: memory, speech
Parts of the Brain
• The cerebellum lie below the cerebrum.
Parts of the Brain
• The cerebellum lie below the cerebrum.-coordinates the skeletal muscles-helps keep balance
Parts of the Brain
• The brain stem connects to the spinal cord.
Parts of the Brain
• The brain stem connects to the spinal cord.- controls the breathing
Parts of the Brain
• The brain stem connects to the spinal cord.- controls the breathing-blood pressure and heart beat
Parts of the Brain
• The brain stem connects to the spinal cord.- controls the breathing- blood pressure and heart beat- muscles in the digestive system