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Unit 4 Exam Review

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  • CSF that leaves the third ventricle will travel next through the ______.
    lateral ventricles
    cerebral aqueduct
    foramen of Monroe
    lateral and median aperatures
  • What is the surface area of gray matter in the cerebellum known as?
    cerebellar cortex
  • The central nervous system consists of the _______.
    brain and spinal cord
  • Which lobe of the cerebrum contains the primary motor cortex?
    frontal lobe
  • What is the definition of a nerve?
    Bundle of axons located outside of the CNS
  • The white mater of the cerebellum is known as the __________________.
    arbor vitae
  • In the adult, the spinal cord ends at about the level of ____.
    L1/L2
  • Which cranial nerve allows you to elevate your shoulders?
    Accessory - CN XI
  • Which lobe of the cerebrum contains Broca's area?
    frontal lobe
  • The tapering end of the spinal cord is known as the __________.
    conus medullaris
  • Which of the following nerves will contract biceps brachii?
    musculocutaneous
    axillary
    radial
    ulnar
  • This cell type produces cerebrospinal fluid
    ependymal cells
  • How many cervical spinal nerves are there?
    eight
  • Which structural classification of neurons is associated with motor neurons?
    bipolar neurons
    multipolar neurons
    unipolar neurons
  • Sensory information enters the spinal cord at the
    anterior gray horn
    dorsal gray horn
    lateral gray horn
    ventral gray horn
  • The arcuate fibers are a type of ___________ track.
    association
  • Which cranial nerve allows you to look at your nose?
    CN V
    CN IV
    CN III
    CN VI
  • This cell type maintains the blood brain barrier.
    astrocyte
  • Which of the following covers a fascicle of axons?
    myelin sheath
    endoneurium
    perineurium
    epineurium
  • Skin segments supplied by spinal nerves are called ____.
    dermatomes
  • Which system of the brain controls emotional states?
    Limbic system
  • What is the structure located on the dorsal surface of the midbrain?
    corpora quadrigemina
  • The initial segment of the axon is known as the ______.
    axon hillock
  • Which fold of dura mater separates the two cerebral hemispheres
    falx cerebri
  • What are descending tracts?
    motor axons that conduct impulses from the brain to the muscles and glands
  • The cerebral peduncles are associated with which portion of the brain stem?
    midbrain
  • This part of the cerebrum controls subconscious muscle movements
    basal nuclei or basal ganglia
  • Which of the following cranial nerves is not correctly matched to its number?
    Trochlear = CN VI
    Hypoglossal = CN XII
    Vestibulocochlear = CN VIII
    Vagus = CN X
  • If you are having a tooth filled on the bottom left side of your mouth, which cranial nerve will the dentist numb?
    VII
    IX
    V
    VIII
  • What makes up the walls of the diencephalon?
    Thalamus
  • The tracks that link the cerebral cortex to the rest of the nervous system are know as?
    Projection fibers
    commissural tracts
    association fibers
  • What is the definition of a tract?
    group of myelinated axons in the CNS
  • To perform an epidural block, where is the medication placed?
    epidural space
    falx cerebelli
    subarachnoid space
    pia mater
  • If a person cannot understand spoken language they likely have an issue with which area of the brain?
    Wernicke's area
  • Which of the following carries motor and sensory information to the front of the body?
    dorsal root
    dorsal ramus
    ventral root
    ventral ramus
  • Which of the following nerves would allow you to cross legs?
    femoral
    sciatic
    pudenal
    phrenic
  • Interneurons are also known as _______ neurons.
    general sensory
    association
    motor
    special sensory
  • Which part of the reflex arc responds to the stimulus?
    effector
  • Which structural classification of neurons is associated with general sensory information?
    unipolar
  • Which spinal segments make up the cervical enlargement?
    C4-T1
  • Which of the following cranial nerves is mixed?
    Trochlear
    Facial Nerve
    Accessory
    Vestibulocochlear