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Psychology 304: Brain and Behaviour Lecture 6

Psychology 304: Brain and Behaviour Lecture 6. What’s important in my career and my life? Start with Arts Co-op! Explore career goals and interests Build 12-16 months of paid experience before graduation Gain job search skills. Application Deadline: Wednesday, September 28 @ 4pm

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Psychology 304: Brain and Behaviour Lecture 6

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  1. Psychology 304: Brain and BehaviourLecture 6

  2. What’s important in my career and my life? • Start with Arts Co-op! • Explore career goals and interests • Build 12-16 months of paid experience before graduation • Gain job search skills Application Deadline: Wednesday, September 28 @ 4pm www.artscoop.ubc.ca

  3. The Structure of the Nervous System 1. How are the components of the central nervous system protected from injury?

  4. By the end of today’s class, you should be able to: 1. distinguish between the three layers of the meninges. 2. discuss the generation and movement of cerebral spinal fluid through the ventricular system.

  5. The Major Divisions of the Nervous System

  6. How are the components of the central nervous system protected from injury? • The brain and spinal cord are protected by three anatomical features: 1. Bone:  The brain is encased in the skull. The spinal cord is encased in the vertebral column (i.e., spine or backbone).

  7. 2. Meninges:  Lay beneath the bone that protects the CNS.  Consists of three layers: Dura mater: outer meninx, a tough membrane. Arachnoid membrane: Immediately inside the dura mater, a fine spider web-like membrane. Pia mater: Innermost meninx, delicate membrane that adheres to the surface of the CNS.

  8. Anatomical Features that Protect the CNS

  9. Anatomical Features that Protect the CNS

  10. 3. Cerebrospinal fluid:  A clear fluid found in three regions: The subarachnoid space. The central canal of the spinal cord. The cerebral ventricles.  Supports and cushions the brain and spinal cord.

  11. The Fluid-Filled Ventricles and Central Canal

  12. Hydrocephalus

  13. In addition to the three anatomical features that protect the CNS, the brain is protected from toxic substances by the blood brain barrier. The cells that comprise blood vessel walls of the brain are tightly packed, preventing the passage of undesirable molecules from the blood into the brain.

  14. The Structure of the Nervous System 1. How are the components of the central nervous system protected from injury?

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