Body Coordination

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Across
  1. 3. Neurons found within the central nervous system. They process and integrate incoming sensory information, and relay outgoing motor information. They send information BETWEEN sensory neurons and motor neurons.
  2. 5. A reaction or change in an organism, either physiological or behavioural, as a result of a stimulus.
  3. 9. Nervous System (PNS): All the nerves that do not form the central nervous system (brain and spinal cord): sensory receptors, sensory neurons and motor neurons.
  4. 11. neurons: Sensory neurons gather information from the sensory receptors (senses) and send this sensory information as impulses TOWARDS the central nervous system.
  5. 12. Sheath: Around the axon of a neuron, an insulating coat of cell membrane.
  6. 13. Cord: Part of the central nervous system that is below the brain and enclosed within vertebra.
  7. 15. A rapid, unconscious reaction to a stimulus, mediated by the spinal cord or lower brain.
  8. 17. arc: A rapid response which automatically follows a stimulus, involving only a small number of neurons. It is composed of a receptor cell, a sensory neuron, an interneuron (relay neuron) in the spinal cord, and a motor neuron, which carries the message to the effector.
  9. 18. The enlarged part of the CNS which is encased within the cranium of the skull, where information is processed and integrated.
  10. 19. nervous system: The brain and the spinal cord
  11. 21. Nervous System: Division of the peripheral nervous system (PNS) that contains all sensory neurons, and motor neurons to skeletal muscles.
  12. 22. A molecule that is released from the synaptic terminal of a neuron at a synapse, diffuses across the synaptic cleft, and binds to the cell on the other side, triggering a response.
  13. 23. Junction between two neurons or a junction between neurons and receptor or effector cells.
Down
  1. 1. Sacs in the axon terminal that contain neurotransmitters, able to fuse with the membrane of the axon terminal in order to release their contents into the synaptic cleft.
  2. 2. neurons: Motor neurons send information AWAY from the central nervous system to effector muscles, glands and other organs (effectors).
  3. 4. Many individual neurons group together into a single structure.
  4. 6. Any change in the environment of an organism that is detected by a receptor and provokes a response in the organism
  5. 7. Long, threadlike part of a neuron which conducts impulses AWAY from the soma (cell body).
  6. 8. terminals: The many fibres that the terminal end of an axon branches into. The end of the neuron where the electrical nerve impulse finishes prior to the synapse.
  7. 10. A cell or group of cells that receives stimuli
  8. 11. (cell body): The cell body of the neuron that processes input from the dendrites; contains the nucleus.
  9. 14. A nerve cell; an elongated branched cell that carries electrical messages, called nerve impulses, from one part of the body to another at high speed
  10. 16. Short, branching terminals that receive nerve impulses from other neurons or sensory receptors, and relay the impulse TOWARD the cell body.
  11. 20. nervous system: Branch of the peripheral nervous system which is involuntary and regulates internal processes without our awareness. Consists of the sympathetic and parasympathetic