The nervous system

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morgan2515
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268062
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The nervous system
Updated:
2014-03-26 13:35:57
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Nervous system
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Intro to anatomy basics of nervous system and some terms
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  1. What are the two main parts of the nervous system?
    The Central nervous system

    The Peripheral nervous system
  2. What tissue does the nervous system consist of?
    neural tissue
  3. What does the central nervous system consist of?
    The spinal cord and the brain
  4. What is the central canal?
    The narrow central cavity that persists within the spinal cord
  5. All other nerves including the cranial and spinal nerves are in which of the two nervous systems?
    Peripheral
  6. An afferent nerve is also described as what?
    Sensory nerve. It carries impulses towards the CNS
  7. An efferent nerve is described as what?
    Motor nerve. It carries impulses toward organs and away from the CNS.
  8. What is a receptor?
    a dendrite. It monitors specific characteristics of the environment
  9. Describe the Somatic Neverous System
    controls the skeletal muscles contractions
  10. describe the Autonomic Nervous system
    regulates smooth muscle, cardiac muscle and glandular activity.
  11. What are the 5 Sensory organs?
    • 1. Eyes: photoreceptors 
    • 2. Taste Buds: chemoreceptors
    • 3. Ear- specialized mechanoreceptors
    • 4. Touch: mechanoreceptors
    • 5. Smell, olfaction: chemoreceptors
  12. What is the cell body also referred to as in the neuron?
    Soma or the perikaryon
  13. What are efferent neurons?
    Motor Neurons
  14. What are sensory neurons?
    A) Efferent

    B) Afferent
    Afferent
  15. Are neurons the same as nerves?
    No, its based on cell morphology
  16. Which of these is not found in the CNS?
    A) Oligodendrocytes

    B) Microglia

    C) Astrocytes

    D) Schwann Cells

    E) ependymal cells
  17. What is grey matter?
    Nerve cell bodies
  18. What are axons covered with?
    A) Lipoprotein called Myelin
    B) Myelin Sheath
    C) Sodium
    D) Nothing
    E) all of the above
    Myelin, greasy covering
  19. What is myelin manufactured by?
    Schwann cells
  20. What are the kinds of Synapses?
    • Axondendritic: Axons to dendrites
    • Axosomatic: axons to cell bodies
    • Axoaxonic: axons to axons
    • Dendrodendritic: dendrites to dendrites
    • Dendrosomatic: Dendrites to cell bodies
  21. Nervous tissue is from what?
    Ectoderm
  22. What does the Myelin Sheath do?
    It covers the axons, helping it transport material faster.
  23. Apoptosis is what?
    Cell death
  24. What connects the two halves of the brain?
    A) cells 
    B) muscle
    C) corpus callosum
    D) Spinal cord
    Corpus callosum
  25. What does the thalamus do?
    It is concerned with the relay of sensory information to the vasal nuclei and cerebral cortex.
  26. What are the five functions of the Hypothalamus?
    • Autonomic control center
    • Emotional responses
    • Body temperature control 
    • Food intake
    • Water Balance and Thirst
    • Sleep and wake cycles
  27. Where are the hypothalamus and thalamus located?
    Midbrain
  28. Where is the brain stem located?
    Midbrain
  29. Which are not a fuction of the medulla oblongata?
    A) Vegetive fuctions( breathing, heart rate)
    B) Vomiting
    C) Hiccuping 
    D) Swallowing
    E) Going to the bathroom
    Going to the bathroom
  30. What are the two divisions of the Autonomic Nervous system?
    Parasympathetic and sympathetic
  31. Know this picture
  32. The epithalamus is?
    forms the roof of the diencephalon. It contains the hormone secreting gland, pineal gland.
  33. What system includes the amygdaloid?
    the limbic system
  34. Olfactory nerve is number what? and does what?
    N1 and it's responsible for smell
  35. The Optic nerve is what number and does what?
    II, carries visual information
  36. The oculomotor nerve is what number and does what?
    III, Moves the eyeball
  37. The troclear nerve is what number and does what?
    IV the moves the superior oblique muscle of eye
  38. The Trigeminal nerve is what number and does what?
    V, mixes with branches. It's the largest cranial nerve
  39. The abducens nerve is what number and does what?
    moves the oculomotor muscle, the lateral rectus. VI
  40. The facial nerve is what number and does what?
    VII, controls muscles of scalp and face and receives taste information from the tongue.
  41. The vestibulocochlear nerve is what number and does what?
    VIII, monitors sensations of balance, position, and movement. Also monitors hearing receptors.
  42. The Glossopharyngeal nerve is what number and does what?
    IX, moves tongue and helps swallowing.
  43. The vagus nerve is what number and does what?
    X, has a variety of motor components
  44. The accessory nerve is what number and does what?
    XI, moves voluntary swallowing muscles
  45. The hypoglossal nerve is what number and does what?
    XII, provides voluntary motor control over tongue movements.

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