the nervous system pt1

• The Central Nervous System (CNS) is comprised of the brain and spinal cord
• The Peripheral Nervous System (PNS) is comprised of all the nerves coming off the spinal cord and into extremities and limbs
• Functions of the Nervous System:

  • Controls and coordinates the body
  • Provides the ability to think and act
  • Allows awareness of emotion, sensation, memory, and surroundings
  • Communicates with the rest of the body through the spinal cord and nerves
  • Gives instructions to all parts of the body about what to do and when to do it
• The brain is divided into three parts and is protected by the skull:

  • Cerebrum: Controls thinking, memory, speaking, senses, movement, and identifies information gathered by sense organs
  • Cerebellum: Controls balance, posture, and coordination
  • Medulla (Brainstem): Connects the brain to the spinal cord and controls breathing, heartbeat, blood pressure, and digestion
• Nerves are bundles of axons that transmit information between different regions of the body.
• the nervous system consists of thebrain, spinal cord, nerve fibre, and effector and receptor organs .
• The spinal cord

  • The spinal cord is the part of the nervous

  system that connects the brain to the rest of

  the nervous system.

  • The spinal cord runs down a tunnel of holes in

  your vertebral column.

  • A thick bundle of nerves, connecting your

  brain to the rest of your body