Spinal Cord and Spinal Nerves

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Spinal Cord and Spinal Nerves

Upper Body Plexuses
Nerve Anatomy
Lower Body Plexuses
Spinal Cord Anatomy
Reflexes
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FINAL ROUND
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Spinal Cord Anatomy 100 Question

• The following statement about spinal nerves is
  true
• a. contain sensory axons
• b. contain motor axons
• c. are formed from the convergence of
  dorsal and ventral roots
• d. exit the vertebral column via
  intervertebral foramina
• e. all of the above

ANSWER
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Spinal Cord Anatomy 100 Answer

• The following statement about spinal nerves is
  true
• a. contain sensory axons
• b. contain motor axons
• c. are formed from the convergence of
  dorsal and ventral roots
• d. exit the vertebral column via
  intervertebral foramina
• e. all of the above

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Spinal Cord Anatomy 200 Question

• The anterior (ventral) gray horn of the spinal
  cord contains the cell bodies of this
• a. motor neurons to skeletal muscle
• b. sensory neurons
• c. association neurons
• d. motor neurons to the ANS
• e. the posterior funiculus

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Spinal Cord Anatomy 200 Answer

• The anterior (ventral) gray horn of the spinal
  cord contains the cell bodies of this
• a. motor neurons to skeletal muscle
• b. sensory neurons
• c. association neurons
• d. motor neurons to the ANS
• e. the posterior funiculus

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Spinal Cord Anatomy 300 Question

• The spinal cord is anchored within the vertebral
  canal by this structure
• a. conus medullaris
• b. cauda equina
• c. filum terminale
• d. coccyx

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Spinal Cord Anatomy 300 Answer

• The spinal cord is anchored within the vertebral
  canal by this structure
• a. conus medullaris
• b. cauda equina
• c. filum terminale
• d. coccyx

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Spinal Cord Anatomy 400 Question

• Anesthetics are injected into this area, which
  contains blood vessels, loose connective tissue
  and fat
• a. epidural space
• b. subdural space
• c. subarachnoid space
• d. cerebrospinal fluid

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Spinal Cord Anatomy 400 Answer

• Anesthetics are injected into this area, which
  contains blood vessels, loose connective tissue
  and fat
• a. epidural space
• b. subdural space
• c. subarachnoid space
• d. cerebrospinal fluid

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10
Spinal Cord Anatomy 500 Question

• These statements explain the presence of
  enlargements found in the cervical and
  lumbosacral (lumbar) region of the spinal cord
  except
• a. large number of motor fibers exit to the
  limbs
• b. large number of sensory fibers enter
  from the limbs
• c. thicker dura mater
• d. large number of cell bodies

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Spinal Cord Anatomy 500 Answer

• These statements explain the presence of
  enlargements found in the cervical and
  lumbosacral (lumbar) region of the spinal cord
  except
• a. large number of motor fibers exit to the
  limbs
• b. large number of sensory fibers enter
  from the limbs
• c. thicker dura mater
• d. large number of cell bodies

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12
Reflexes 100 Question

• Given these components of a reflex 1.
  association neuron2. skeletal muscle3. afferent
  neuron4. efferent neuron5. sensory receptor
• Choose the sequence below that best represents
  the order followed in a reflex, from stimulus to
  response.
• a. 5, 4, 3, 2, 1 c. 5, 4, 3, 1, 2
• b. 5, 3, 2, 4, 1 d. 5, 3, 1, 4, 2

ANSWER
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Reflexes 100 Answer

• Given these components of a reflex 1.
  association neuron2. skeletal muscle3. afferent
  neuron4. efferent neuron5. sensory receptor
• Choose the sequence below that best represents
  the order followed in a reflex, from stimulus to
  response.
• a. 5, 4, 3, 2, 1 c. 5, 4, 3, 1, 2
• b. 5, 3, 2, 4, 1 d. 5, 3, 1, 4, 2

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Reflexes 200 Question

• A polysynaptic reflex involve a pathway in which
  sensory neurons synapse directly with motor
  neurons.
• True/False

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Reflexes 200 Answer

• A polysynaptic reflex involve a pathway in which
  sensory neurons synapse directly with motor
  neurons.
• True/False

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Reflexes 300 Question

• A knee-jerk reflex is an example of this
• a. crossed extensor reflex
• b. withdrawal reflex
• c. Golgi tendon reflex
• d. stretch reflex

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Reflexes 300 Answer

• A knee-jerk reflex is an example of this
• a. crossed extensor reflex
• b. withdrawal reflex
• c. Golgi tendon reflex
• d. stretch reflex

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Reflexes 400 Question

• These are responsible for regulating the
  sensitivity of the muscle spindle
• a. alpha motor neurons
• b. sensory neurons
• c. gamma motor neurons
• d. Golgi tendon organs
• e. inhibitory interneurons

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Reflexes 400 Answer

• These are responsible for regulating the
  sensitivity of the muscle spindle
• a. alpha motor neurons
• b. sensory neurons
• c. gamma motor neurons
• d. Golgi tendon organs
• e. inhibitory interneurons

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20
Reflexes 500 Question

• Excitatory interneurons are involved in this
  spinal reflex
• a. Golgi tendon reflex
• b. knee jerk reflex
• c. stretch reflex
• d. withdrawal reflex

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Reflexes 500 Answer

• Excitatory interneurons are involved in this
  spinal reflex
• a. Golgi tendon reflex
• b. knee jerk reflex
• c. stretch reflex
• d. withdrawal reflex

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Nerve Anatomy 100 Question

• There are this many spinal nerves that exit the
  spinal cord in the cervical region
• a. 6
• b. 7
• c. 8
• d. 12

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Nerve Anatomy 100 Answer

• There are this many spinal nerves that exit the
  spinal cord in the cervical region
• a. 6
• b. 7
• c. 8
• d. 12

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Nerve Anatomy 200 Question

• The dorsal (posterior) rami innervate
• a. the deep muscles of the back
• b. connective tissue and skin of the back
• c. intercostal muscles
• d. a and b
• e. all of these

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Nerve Anatomy 200 Answer

• The dorsal (posterior) rami innervate
• a. the deep muscles of the back
• b. connective tissue and skin of the back
• c. intercostal muscles
• d. a and b
• e. all of these

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26
Nerve Anatomy 300 Question

• Each axon and its myelin sheath are surrounded by
  a delicate connective tissue layer called this
• a. epineurium
• b. perineurium
• c. endoneurium

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27
Nerve Anatomy 300 Answer

• Each axon and its myelin sheath are surrounded by
  a delicate connective tissue layer called this
• a. epineurium
• b. perineurium
• c. endoneurium

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28
Nerve Anatomy 400 Question

• Damage to the ventral ramus of a spinal nerve
  results in this
• a. loss of sensation
• b. loss of motor function
• c. both a and b

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29
Nerve Anatomy 400 Answer

• Damage to the ventral ramus of a spinal nerve
  results in this
• a. loss of sensation
• b. loss of motor function
• c. both a and b

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30
Nerve Anatomy 500 Question

• A patient who suffered whiplash in a car wreck
  has developed numbness in the left arm, forearm
  and hand. This is the most probable site of
  nerve damage
• a. C3, C4, C5
• b. C5-T1
• c. T1-T12
• d. C1-T1

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Nerve Anatomy 500 Answer

• A patient who suffered whiplash in a car wreck
  has developed numbness in the left arm, forearm
  and hand. This is the most probable site of
  nerve damage
• a. C3, C4, C5
• b. C5-T1
• c. T1-T12
• d. C1-T1

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32
Upper Body Plexuses100 Question

• The cervical plexus originates from these spinal
  nerves
• a. C1-C2
• b. C1-C4
• c. C1-C5
• d. C5-T1

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Upper Body Plexuses100 Answer

• The cervical plexus originates from these spinal
  nerves
• a. C1-C2
• b. C1-C4
• c. C1-C5
• d. C5-T1

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34
Upper Body Plexuses 200 Question

• This nerve arises from the cervical plexus
• a. median
• b. musculocutaneous
• c. phrenic
• d. obturator
• e. ulnar

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Upper Body Plexuses 200 Answer

• This nerve arises from the cervical plexus
• a. median
• b. musculocutaneous
• c. phrenic
• d. obturator
• e. ulnar

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Upper Body Plexuses 300 Question

• Loss of ability to extend the arm, forearm, and
  hand indicates damage to this nerve
• a. axillary nerve
• b. median nerve
• c. musculocutaneous nerve
• d. radial nerve
• e. ulnar nerve

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37
Upper Body Plexuses 300 Answer

• Loss of ability to extend the arm, forearm, and
  hand indicates damage to this nerve
• a. axillary nerve
• b. median nerve
• c. musculocutaneous nerve
• d. radial nerve
• e. ulnar nerve

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38
Upper Body Plexuses 400 Question

• This nerve innervates the deltoid muscle and
  provides sensory input from the shoulder
• a. axillary nerve
• b. median nerve
• c. musculocutaneous nerve
• d. radial nerve
• e. ulnar nerve

ANSWER
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Upper Body Plexuses 400 Answer

• This nerve innervates the deltoid muscle and
  provides sensory input from the shoulder
• a. axillary nerve
• b. median nerve
• c. musculocutaneous nerve
• d. radial nerve
• e. ulnar nerve

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40
Upper Body Plexuses 500 Question

• As a result of repetitive movements, inflammation
  within the carpal tunnel compresses this nerve
  which results in numbness, tingling, and pain in
  the fingers
• a. ulnar
• b. radial
• c. median
• d. axillary

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41
Upper Body Plexuses 500 Answer

• As a result of repetitive movements, inflammation
  within the carpal tunnel compresses this nerve
  which results in numbness, tingling, and pain in
  the fingers
• a. ulnar
• b. radial
• c. median
• d. axillary

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42
Lower Body Plexuses100 Question

• The plexus that originates from spinal nerves
  L1-L4 is this
• a. cervical plexus
• b. brachial plexus
• c. lumbar plexus
• d. sacral plexus
• e. coccygeal plexus

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Lower Body Plexuses 100 Answer

• The plexus that originates from spinal nerves
  L1-L4 is this
• a. cervical plexus
• b. brachial plexus
• c. lumbar plexus
• d. sacral plexus
• e. coccygeal plexus

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Lower Body Plexuses 200 Question

• This nerve arises from the lumbosacral plexus and
  is the largest peripheral nerve in the body
• a. femoral nerve
• b. ischiadic (sciatic) nerve
• c. obturator nerve
• d. pudendal nerve

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Lower Body Plexuses 200 Answer

• This nerve arises from the lumbosacral plexus and
  is the largest peripheral nerve in the body
• a. femoral nerve
• b. ischiadic (sciatic) nerve
• c. obturator nerve
• d. pudendal nerve

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46
Lower Body Plexuses 300 Question

• The muscles of the anterior compartment of the
  thigh are supplied by this nerve
• a. obturator nerve
• b. gluteal nerve
• c. sciatic nerve
• d. femoral nerve
• e. ilioinguinal nerve

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47
Lower Body Plexuses 300 Answer

• The muscles of the anterior compartment of the
  thigh are supplied by this nerve
• a. obturator nerve
• b. gluteal nerve
• c. sciatic nerve
• d. femoral nerve
• e. ilioinguinal nerve

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48
Lower Body Plexuses 400 Question

• Before a doctor performs an episiotomy, a cut in
  the perineum that makes the opening of the birth
  canal larger, branches these nerves arising from
  the lumbosacral plexuses are anesthetized
• a. femoral nerves
• b. ischiadic nerves
• c. obturator nerves
• d. pudendal nerves

ANSWER
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49
Lower Body Plexuses 400 Answer

• Before a doctor performs an episiotomy, a cut in
  the perineum that makes the opening of the birth
  canal larger, branches these nerves arising from
  the lumbosacral plexuses are anesthetized
• a. femoral nerves
• b. ischiadic nerves
• c. obturator nerves
• d. pudendal nerves

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50
Lower Body Plexuses 500 Question

• In an automobile accident a woman suffers a
  crushing hip injury, and she is unable to adduct
  the thigh. This nerve is most likely damaged
• a. obturator nerve
• b. femoral nerve
• c. sciatic (tibial) nerve
• d. gluteal nerve

ANSWER
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51
Lower Body Plexuses 500 Answer

• In an automobile accident a woman suffers a
  crushing hip injury, and she is unable to adduct
  the thigh. This nerve is most likely damaged
• a. obturator nerve
• b. femoral nerve
• c. sciatic (tibial) nerve
• d. gluteal nerve

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52
FINAL ROUND Question

• In spinal anethesia (spinal block), drugs that
  block action potential transmission and prevent
  pain sensations are injected into this
• a. epidural space
• b. subarachnoid space
• c. gluteal muscles
• d. between L1 and L2

ANSWER
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53
FINAL ROUND Answer

• In spinal anethesia (spinal block), drugs that
  block action potential transmission and prevent
  pain sensations are injected into this
• a. epidural space
• b. subarachnoid space
• c. gluteal muscles
• d. between L1 and L2

BACK TO GAME