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CHAPTER 3

CHAPTER 3. NEUROSCIENCE AND BEHAVIOR QURAT-UL-AAIN LECTURER, BZU LAHORE CAMPUS. CENTRAL NERVOUS SYSTEM. CNS consists of. Brain Spinal cord. PNS consists of. Sympathetic nervous system Autonomic nervous system.

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CHAPTER 3

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  1. CHAPTER 3 NEUROSCIENCE AND BEHAVIOR QURAT-UL-AAIN LECTURER, BZU LAHORE CAMPUS

  2. CENTRAL NERVOUS SYSTEM

  3. CNS consists of • Brain • Spinal cord

  4. PNS consists of • Sympathetic nervous system • Autonomic nervous system

  5. The central nervous system (CNS) is the part of the nervous system that functions to coordinate the activity of all parts of the bodies of living organisms. • In vertebrates, the central nervous system is enclosed in the protective covering called “meninges”. • It contains the majority of the nervous system and consists of the brain (in vertebrates which have them), and the spinal cord.

  6. THE BRAIN

  7. The brain is the part of the central nervous system located in the skull. It controls the mental processes and physical actions of a human being.

  8. Cerebrum • Cerebrum-largest part of brain. Responsible for reasoning, thought, memory, speech, sensation, etc. • Divided into two halves. • Further divided into lobes; occipital, parietal, temporal and frontal

  9. Cerebellum • Cerebellum-responsible for muscle coordination • Brain stem- most basic functions; respiration, swallowing, blood pressure. Lower part (medulla oblongata) is continuous with spinal cord

  10. The limbic system is a set of brain structures including the hippocampus, amygdala, Hypothalamus and limbic cortex, which support a variety of functions including emotion, behavior, long term memory, and homeostasis/balance of the body.

  11. The Cerebral Cortex • The “new Brain” responsible for the most sophisticated information processing in the brain. • It contains 4 lobes • Frontal lobe • Parietal lobe • Occipital lobe • Temporal lobe

  12. LOBES

  13. Functions of Lobes

  14. FRONTAL LOBE • Located in front area or behind the forehead. • Concerned with reasoning, planning, parts of speech and movement (motor cortex), emotions, and problem-solving. PARIETAL LOBE • Located between frontal and occipital lobe • Concerned with perception of stimuli related to touch, pressure, temperature and pain.

  15. TEMPORAL LOBE • Located on sides of brain or just above the forhead. • Concerned with perception and recognition of auditory stimuli (hearing) and memory (hippocampus). OCCIPITAL LOBE • Located at the back of the brain, behind the parietal lobe and temporal lobe. • Concerned with many aspects of vision.

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