Chapter 18: Brain

• which structures protect the brain

  cranium, dura mater, arachnoid mater and pia mater
• the majority of CSF production is from which site


  choroid pelxuses
• T or F: the hypothalamus is a small part of the epithalamus 


  F
• T or F: the transverse fissure and the tentorium cerebelli separate the cerebellum from the cerebrum 


  T
• T or F: the cerebellar peduncles attach the cerebellum to the brainstem


  T
• T or F: the thalamus makes up 80% of the diencephalon 


  T
• Important functions of the hypothalamus include 


  production of hormones

  regulation of emotional and behavioral patterns

  control the ANS

  regulate eating and drinking
• the central sulcus separates which two lobes


  frontal and parietal
• the corpus callosum belongs to which type of tract


  commissural tracts
• which cranial nerves are associated with eye movement

  oculomotor, trochlear and abducens
• which cranial nerve is responsible for conveying impulses related to hearing and equilibrium

  vestibulocochlear
• which part of the developing brain gives rise to the cerebellum

  rhombencephalon
• which structures do not contribute to the protection of the brain


  the pons
• what structures contribute to the protection of the brain?


  the bones of the skull

  the cranial meninges

  the subQ layer

  the blood brain barrier
• cranial nerve I =

  olfactory n
• cranial nerve IV =

  trochlear n
• cranial nerve X =

  vagus n
• cranial nerve VII =

  facial nerve
• T or F: the arbor vitae is a branching pattern of myelinated axons within the cerebellum

  T
• T or F: the arbor vitae is the location where axons from the optic nerves meet, split and cross over

  F
• T or F: the arbor vitae is the structure that regulates basic functions such as breathing rhythm and heart rate

  F
• T or F: the arbor vitae is the structure that forms the major conduit of nerve impulses from the left and right hemispheres

  F
• the inferior cerebellar peduncles permit communication between the cerebellum and the

  medulla oblongata
• the function(s) of the medulla oblongata are:

  regulates the heart rate

  links the brain with the spinal cord

  regulates distribution of blood flow
• III n. =

  motor eye movements
• VI n. =

  motor eye movements
• IV n. =

  motor eye movements
• VII n. =

  taste
• hemispheric lateralizaton means

  that the left and right side of the brain specialize for different functions
• in old age what changes are seen

  decrease in synaptic contacts
• the spinal cord extends superiorly to what portion of the brain

  the medulla oblongata
• what is not a function of the reticular activating system

  hearing
• what are the functions of the reticular activating system

  consciousness

  arousal

  prevention of sensory overload
• this region of the cerebral hemisphere is responsible for touch, proprioception, pain, itch and thermal sensations, it is:

  primary somatosensory area
• the trigeminal nerve does what

  is the trigeminal

  carrier motor information involved in chewing of food

  may carry sensory information about a toothache
• motor information which tends to slow heart rate and stimulate parts of the digestive system is carried from the brain in the ____ cranial nerve

  X
• which is associated with an aging brain

  decreased synaptic connections
• olfactory neruons are ____ neruons that extends through the cribiform plate

  bipolar
• what structures do the olfactory nerves enter as they pass through the cribiform plate of the ethmoid bone

  olfactory blub
• the optic nerve conveys ___ information

  visual