5B

• Face includes facial expression, orbits, and oral cavities?
• Scalp is superior, posterior, and lateral regions of head.
• write SCALP, bones, + menginges layers

  True
• Connective tissue contains blood supply and nerves.
• Loose connective tissue - infections localize and spread here.
• Contracting aponeurotic layer moves occipitofrontalis muscle bellies, move scalp, wrinkles forehead and raises eyebrows
• dura mater separates to form:

  • dural partitions
  • intracranial venous structures
• 4 dural partitions of brain:

  • falx cerebri
  • falx cerebelli
  • tentorium cerebelli
  • diaphragma sellae
• Meningeal arteries pass through dura mater
• label: 9 parts

  
• 4 lobes:

  • frontal
  • temporal
  • parietal
  • occipital
• vertebral a. enter though foramen magnum

  INF. to pons tuse to form basilar a.
• internal carotid a. stay separated and enter through carotid canal to join circle of Willis
• Circle of willis can run clockwise and anti-clockwise if there are blockages to minimize damage.
• Internal carotid a. branches (4)

  • opthalmic a.
  • posterior communicating a.
  • middle cerebral a.
  • anterior cerebral a.
• ANT. communicating a. connects L/R ANT. cerebral a.
• POST. communicating a. connected internal cartoid a. with POST. cerebral a.