26.     Which association below, regarding spinal nerve plexuses, is FALSE? a.    Cervical plexus ~ C1-C5, neck muscles, phrenic nerve at C-3, diaphragm innervationb.    Brachial plexus ~ C5-T1, upper limbs, radial nerve, median nerve, ulnar nervec.    Lumbar plexus ~ T12//L1-L4, pelvic area,  lower limbs, femoral nerve d.    Sacral plexus ~ L4-S4, pubic area, lower limbs, sciatic nerve, lumbrosacral jointe.    Lumbo-sacral plexus ~ L5-S1, contains the lumbar & sacral plexus and is a common site for lower back pain as we age  

32.    Name the final relay point for ascending “sensory” information that is projected higher up to the primary sensory cortex? a.    spinal cordb.    medulla oblongatac.    motor homonculusd.    thalamus in the diencephalone.    brain stem  

7.    Name the meninge covering the spinal cord, that forms the innermost boundary of the subarachnoid space? a.    dural foldb.    arachnoidc.    dura materd.    pia matere.    denticulate ligament

5.    The ventral roots of each spinal cord segment? a.    bring sensory information into the spinal cord via the dorsal rootsb.    control voluntary contraction of skeletal muscle (SM)c.    contain both somatic motor (SM) & visceral motor (VM) neuronsd.    receive sensory information from enteroceptors, proprioceptors, & exteroceptors e.    b & c

24.    Four of the five symptoms listed below could occur in a person that severs the sensory & motor neurons in the spinal cord at the level of C-3.        What symptom below would NOT occur in this person? a.    inability to breathe voluntarilyb.    inability to sense feelings in the arms and legsc.    quadriplegia or inability to move the arms and legsd.    inability to eat & swallow foode.    paraplegia or inability to move the arms

21. In a spinal diagnostic procedure known as myelography?   a. cerebrospinal fluid is withdrawn from the L3-L4 region of the spinal cord for diagnosis b. local anesthetic is introduced into the epidural space for C-sections c. a radiopaque dye is injected into the subarachnoid space at L3-L4 for diagnosis d. dye is injected directly into the spinal cord to detect a herniated disc e. spinal nerves are damaged during this procedure since spinal cord puncture occurs    

31.    What is the primary purpose of the blood brain barrier (BBB)? a.    provides the brain with oxygenated bloodb.    provides the brain with glucose & other nutrientsc.    drains venous blood via the internal jugular vein back to the heartd.    is a barrier that protects the brain from toxic substances in the bloode.    causes strokes when blood cannot flow to the brain  

19.    What happens if ONLY the ventral roots of a spinal nerve between C5-T1 are severed? a.    motor control of visceral organs to the thoracic & abdominal cavity would be impairedb.    the spinal cord would not be able to receive any sensory information at that levelc.    the brain would not be able to communicate in any way with spinal cordd.    incoming sensory information to the brachial plexus of the spinal cord would be disruptede.    motor control of skeletal muscles to the brachial plexus would be interrupted  

20. In diagnosing bacterial and viral infections of the brain, samples of cerebrospinal fluid (CSF) are extracted for analysis.  This procedure would withdraw CSF from the?   a. cerebral spinal space between the brain & spinal cord b. epidural space above the dura mater c. subarachnoid space of the brain between the dura mater & arachnoid d. subarachnoid space of the spinal cord between the arachnoid and pia mater e. ventricles of the brain that contain CSF

36.    Damage to the pyramidal cells of the frontal lobe of the cerebral cortex would directly affect? a.    sensory perception of painb.    sightc.    voluntary somatic motor & voluntary skeletal muscle controld.   hearing & olfactione.   taste