Nervous


  1. The brain and spinal cord make up the: Central Nervous System (CNS).

  2. Nerve fibers that lead to the CNS make up what division of the nervous system: Sensory (afferent) division.

  3. What are the two divisions of the motor system: Somatic and Autonomic.

  4. The part of the neuron that houses the nucleus: Cell body.

  5. What type of actions only go as far as the spinal cord: Reflexes.

  6. What is the gap between neurons called: Synapse.

  7. The cranial and spinal nerves make up the: Peripheral Nervous System (PNS).

  8. In a reflex arc, sensory neurons lead to the: CNS, which leads to motor neurons.

  9. The motor division sends impulses from the CNS to: Effectors (muscles or glands).

  10. Which division is voluntary, Autonomic or Somatic: Somatic.

  11. The fatty material that insulates the nerve fibers of the axon: Myelin.

  12. The chemical that aids an impulse at the synapse: Neurotransmitter.

  13. A neuron process that receives the impulse: Dendrite.

  14. Which matter is myelinated: White matter.

  15. The ability to respond to stimuli is called: Irritability.

  16. What is the most superior part of the brain called: Cerebrum.

  17. Which part of the brain is responsible for balance and equilibrium: Cerebellum.

  18. What large fiber tract connects the cerebrum hemispheres: Corpus callosum.

  19. What are the ridges of the brain called: Gyri.

  20. What is the name of the interbrain which sits atop of the brainstem within the cerebral hemispheres: Diencephalon.

  21. What was the relay station of the brain: Thalamus.

  22. What part of the brain is responsible for hearing & vision: Midbrain.

  23. What part of the brain is responsible for thirst, appetite, etc., and controls the pituitary: Hypothalamus.

  24. What part of the brainstem is rounded and acts as a relay station: Pons.

  25. Which part of the brain controls heart rate, blood pressure, breathing, vomiting, etc.: Medulla oblongata.

  26. What is the name of the collection of spinal nerves at the inferior end of the vertebral canal: Cauda equina.

  27. The blood-brain barrier is made up of the least permeable: Capillaries.

  28. What is the name of the protective coverings around the brain and spinal cord: Meninges.

  29. What is the name of the fluid that surrounds the brain & spinal cord: Cerebrospinal fluid (CSF).

  30. What is the name of the inner meninges (gentle mother): Pia mater.

  31. What is a bundle of neuron fibers outside of the CNS called: Nerve.

  32. What is the simplest response to a stimulus called: Reflex.

  33. Long fibers that carry impulses away from the cell body: Axons.

  34. Water on the brain: Hydrocephalus.

  35. Tissue damage to the brain: Concussion.

  36. What disorder leads to progressive degenerative memory loss: Alzheimer's disease.

  37. Inflammation of the meninges: Meningitis.

  38. Inflammation of the brain: Encephalitis.

  39. Myelin coating gradually disappears: Multiple Sclerosis (MS).

  40. Blood circulation to the brain is blocked: Stroke.

  41. What percent of the sensory receptors in the body are in the eye: 70%.

  42. What protects the eye anteriorly: Cornea.

  43. What is the delicate membrane that covers the outside of the eye: Conjunctiva.

  44. What gland is constantly producing a salt solution to wash the eye: Lacrimal gland.

  45. What is the antibacterial enzyme released by the lacrimal glands: Lysozyme.

  46. What is the hollow sphere of the eye called: Eyeball.

  47. What is the name of the flexible bi-concave crystal-like structure: Lens.

  48. What is the term for the coats of the eye: Tunics.

  49. What photoreceptor of the eye sees colors: Cones.

  50. The bending of light is called: Refraction.

  51. Depth perception and 3-D vision is called: Binocular vision.

  52. Pigmented area of the eye that contracts to let light in: Iris.

  53. Unequal curvatures of the lens: Astigmatism.

  54. Where the fibers of the eye cross: Optic chiasma.

  55. Area in the back of the eye (concentrated cones) for visual acuity: Fovea centralis.

  56. Middle coat of the eye: Choroid.

  57. Easiest organ to transplant: Cornea.

  58. Nearsightedness: Myopia.

  59. Hole in the eye: Pupil.

  60. What photoreceptor of the eye sees black & white: Rods.

  61. Normal eyes that accommodate correctly: Emmetropia.

  62. Area where the optic nerve leaves the eye: Blind spot.

  63. Smooth muscle that lens attaches to: Ciliary body.

  64. Type of humor that is posterior to the lens: Vitreous humor.

  65. The white of the eye: Sclera.

  66. Instrument which allows you to see the fundus of the eye: Ophthalmoscope.

  67. Tunic that lines the inner eye: Retina.

  68. Allows you peripheral vision: Rods.

  69. Type of humor that is anterior to the lens: Aqueous humor.

  70. Type of receptors that respond to physical forces: Mechanoreceptors.

  71. The term for the bones of the ear: Ossicles.

  72. Snail-like organ that has hearing receptors: Cochlea.

  73. What are the three divisions of the ear: Outer, Middle, Inner.

  74. What is the malleus: Hammer.

  75. What is another term for the eardrum: Tympanic membrane.

  76. What is another term for earwax: Cerumen.

  77. Main hearing structure within the cochlea: Organ of Corti.

  78. Type of receptors within the organ of Corti, macula, & crista ampullaris: Hair cells.

  79. Thick fluid in the membranous labyrinth: Endolymph.

  80. Inner ear part oriented in 3 planes used for dynamic equilibrium: Semicircular canals.

  81. Receptor region within the semicircular canals: Crista ampullaris.

  82. Hearing loss: Deafness.

  83. Tiny stones made of calcium salts embedded in a gel in macula: Otoliths.

  84. Type of equilibrium at rest: Static equilibrium.

  85. Sensation of spinning: Vertigo.

  86. Which part of the ear contains the ossicles: Middle ear.

  87. Which part of the ear is responsible for equilibrium: Inner ear.

  88. Outer ear (what most people think is the ear): Pinna.

  89. The incus is another name for: Anvil.

  90. What does the stirrup rest on: Oval window.

  91. What does the hammer rest on: Tympanic membrane.

  92. What is the name of the tube that equalizes pressure: Eustachian tube.

  93. What is the term for the maze of the inner ear: Labyrinth.

  94. Nerve along which sound vibrations are transmitted: Cochlear nerve.

  95. Nerve along which changes in motion are transmitted: Vestibular nerve.

  96. Type of deafness in which something interferes with the sound vibrations hitting the inner ear: Conductive deafness.

  97. Receptor region located within the vestibule: Macula.

  98. Type of deafness in which degeneration or damage to the organ of Corti occurs: Sensorineural deafness.

  99. Short, narrow chamber of the outer ear: External auditory canal.