Flashcards in this deck (28)

• What does the CNS consist of?

  • Brain
  • Spinal cord
  • All nerves
  anatomy nervous_system
• What is the role of the somatic nervous system?

  Innervates skeletal muscle for voluntary and reflexive movements.
  nervous_system somatic
• What does the autonomic nervous system control?

  • Involuntary regulation of smooth muscle
  • Cardiac muscle
  • Glands
  nervous_system autonomic
• What are the components of the ANS?

  • Parasympathetic NS
  • Sympathetic NS
  nervous_system ans
• Where are parasympathetic ganglia located?

  Close to or within the organs/tissues they innervate.
  nervous_system ganglia
• Where are sympathetic ganglia located?

  At more distant sites from their target organs.
  nervous_system ganglia
• What is the function of the Parasympathetic NS?

  • Regulates functional activities
  • Conserves energy
  • Promotes digestion (rest and digest)
  nervous_system parasympathetic
• What does the Sympathetic NS prepare the body for?

  Stressful situations and the fight or flight response.
  nervous_system sympathetic
• What is the outflow of the PNS?

  Craniosacral outflow from the brainstem and sacral spinal cord.
  nervous_system pns
• What is the outflow of the Sympathetic NS?

  Thoracolumbar outflow from thoracic and upper lumbar spinal cord.
  nervous_system sympathetic
• Where is the sympathetic trunk located?

  Travels down from the skull, lateral to the vertebral bodies.
  anatomy nervous_system
• What is a nerve plexus?

  A network of intersecting nerves from merging anterior rami of spinal nerves.
  anatomy nervous_system
• What nerves form the Cervical Plexus?

  Anterior rami of spinal nerves C1 - C4. Supplies neck regions.
  anatomy nervous_system
• What is the function of the Brachial Plexus?

  Supplies structures of the upper limb from spinal nerves C5 - T1.
  anatomy nervous_system
• What key nerves arise from the Brachial Plexus?

  • Radial nerve
  • Median nerve
  • Ulnar nerve
  anatomy nervous_system
• What nerves are involved in the Lumbar Plexus?

  Anterior rami of spinal nerves L1 - L4. Supplies pelvis and lower limb.
  anatomy nervous_system
• What does the sacral plexus supply?

  Supplies the perineum and lower limb from spinal nerves L4 - S4.
  anatomy nervous_system
• What does the coccygeal plexus supply?

  Supplies the skin of the coccygeal area from spinal nerves S4 - C1.
  anatomy nervous_system
• What are the four lobes of each cerebral hemisphere?

  • Frontal lobe
  • Parietal lobe
  • Temporal lobe
  • Occipital lobe
  anatomy brain
• What major structures are shown in the brain diagram?

  Lateral view of cerebral lobes and sulci: F, P, T, O.
  anatomy brain
• What are the components of the brainstem?

  • Midbrain
  • Pons
  • Medulla
  anatomy brainstem
• What does the brainstem connect to?

  It is continuous with the spinal cord at the foramen magnum.
  anatomy spinalcord
• What nerves are part of the lumbar plexus?

  • Iliohypogastric N. (L1)
  • Ilioinguinal N. (L1)
  • Genitofemoral N. (L1, L2)
  • Lat. Fem. Cut. N. (L3, 4)
  • Femoral N. (L2, 3, 4)
  • Obturator N. (L2, 3, 4)
  anatomy lumbarplexus
• What are the key nerves in the sacral plexus?

  • Lumbosacral trunk
  • Superior gluteal nerve
  • Inferior gluteal nerve
  • Sciatic nerve
  • Pudendal nerve
  anatomy sacralplexus
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