Gustavo Sabbado
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Quiz on Spinal Cord, created by Gustavo Sabbado on 31/03/2015.

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Gustavo Sabbado
Created by Gustavo Sabbado about 9 years ago
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Spinal Cord

Question 1 of 25

1

The spinal cord occupies the entire vertebral canal:

Select one of the following:

  • yes

  • now

Explanation

Question 2 of 25

1

The end of the spinal cord (conus medularis) in adults is at L2:

Select one of the following:

  • Yes

  • No

Explanation

Question 3 of 25

1

The sacrum contains the subarachnoid space along the whole length of the sacral canal:

Select one of the following:

  • Yes

  • No

Explanation

Question 4 of 25

1

The atlas has the first cervical spinal nerve on it's posterior arch.

Select one of the following:

  • Yes

  • No

Explanation

Question 5 of 25

1

The first spinal nerve has the shortest roots ad the last one the longest.

Select one of the following:

  • Yes

  • No

Explanation

Question 6 of 25

1

The connection between the dorsal and the lateral funicle is called Lisauer zone (zona terminalis).

Select one of the following:

  • Yes

  • No

Explanation

Question 7 of 25

1

Sulcus intermedius dorsalis is a groove between sulcus medianus dorsalis and sulcus dorsolateralis in the upper thoracic and cervical part of the spinal cord

Select one of the following:

  • Yes

  • No

Explanation

Question 8 of 25

1

Dorsal funiculus in cervical segments contains fasciculus gracilis, laterally and fasciculus cuneatus, medually.

Select one of the following:

  • Yes

  • No

Explanation

Question 9 of 25

1

The spinal cord ends caudally at the cuccyx

Select one of the following:

  • Yes

  • No

Explanation

Question 10 of 25

1

If in the process of doing a lumbar puncture a spinal needle was inserted posteriorly in the midline until it had just penetrated the posterior longitudinal ligament, would the needle have entered the subarachnoid space?

Select one of the following:

  • Yes

  • No

Explanation

Question 11 of 25

1

The part of a spinal nerve that supplies the true back muscles and the skin overlying them is:

Select one of the following:

  • Dorsal primary ramus

  • Dorsal root

  • Ventral primary ramus

  • Ventral root

Explanation

Question 12 of 25

1

A football player suffers a herniated intervetebral disk in his neck. The disk compresses the spinal nerve exiting through the intervetebral foramen between the 5th and 6th cervical vertebrae. Which spinal nerve is affected?

Select one of the following:

  • C 4

  • C5

  • C6

  • C7

  • C8

Explanation

Question 13 of 25

1

A man has a herniated intervetebral disk netween the 4th and 5th lumbar vertebrae. If the disk compresses the spinal nerve in the intervetebral foramen immediately posterior to this disk, which spinal nerve would be affected?

Select one of the following:

  • L3

  • L4

  • L5

  • S1

  • S2

Explanation

Question 14 of 25

1

Both the dural sac and the suarachnoid space end at which vertebral level?

Select one of the following:

  • L4

  • L5

  • S2

  • S1

  • S4

Explanation

Question 15 of 25

1

It is decided to image the spinal cord and spinal nerve rootlets by doing a myelogram. I order to inject the dye without damage to the spinal cord, the injection is usually done below what vertebral level?

Select one of the following:

  • L1

  • L2

  • L3

  • L4

  • L5

Explanation

Question 16 of 25

1

The myelogram revealed that the dye had leaked out along the the spinal nerves in the mid cervical region on the righ side. For the dye to leak out, what layer must have been torn ot ruptured?

Select one of the following:

  • Arachnoid

  • Denticulate ligament

  • Periosteum

  • pia

  • perumeurium

Explanation

Question 17 of 25

1

In the lumbar spine, the L4 nerve roots sleeve exits:

Select one of the following:

  • above the pedicle of L4 and at the top of the intervetebral foramen

  • above the pedicle of L4 and at the bottom of the intervetebral foramen

  • below the pedicle of L4 and at the top of the intervetebral foramen

  • below the pedicle if L4 and at the bottom of the intervetebral foramen

Explanation

Question 18 of 25

1

Which structure does NOT contain efferent autonomic nerve fibers?

Select one of the following:

  • dorsal ramus of C4

  • dorsal root of t6

  • ventral root of t3

  • ventral ramus of l2

Explanation

Question 19 of 25

1

it was noted that after the injury the patient's face on the right side was flushed due to dilation of the blood vessels. The lack of vasoconstriction was due to interruption of what fibers somewhere along their course?

Select one of the following:

  • somatic afferent

  • somatic efferent

  • parasympathetic

  • sympathetic

Explanation

Question 20 of 25

1

a 60 years old male presented with a number of unusual signs and symptoms in the facial region. Among others, it was found that the right side of his face was flushed. Further testing revealed a lack of ability to sweat in the same cutaneous region. Which nervous structures were most likely implicated in this set of clinical abnormalities?

Select one of the following:

  • cranial outflow of the ans

  • dorsal roots of cervical nerves

  • gray rami communicantes of t5

  • sympathetic nerve fibers

  • vagus berves

Explanation

Question 21 of 25

1

The conus medularis:

Select one of the following:

  • exhibits both a cervical and lumbar enlargement.

  • has a modification of neural tissue extending from its termination to the coccygeal ligament

  • gives origin to most of the cauda equina

  • is found at its lowest extent at S2

  • is normally anesthetized to perform a spinal tap

Explanation

Question 22 of 25

1

A neuron with a cell body in the dorsal root ganglia could convey what type of fibers?

Select one of the following:

  • motor to deep back muscles

  • motor to the pectoralis major muscle

  • sensory from the skin ovelying the trapezius

  • sympathetic preganglionics to the suprarenal medulla

  • visceral efferents to the stomach

Explanation

Question 23 of 25

1

Which is a source of axons found in the dorsal primary ramus of the 4th thoracic spinal nerve?

Select one of the following:

  • Afferent neurons arising from the skin overlying the trapezius muscle

  • somatic motor neurons supplying the levator scapulae muscle

  • somatic motor neurons supplying the rhomboid muscles

  • somatic motor neurons supplying the trapezius muscle

Explanation

Question 24 of 25

1

The denticulate ligament:

Select one of the following:

  • is a modification of the pia mater

  • is found between all dorsal and ventral roots

  • attaches to the dural sac continuously

  • has its terminal attachment at S2

  • holds the radicular arteries in place

Explanation

Question 25 of 25

1

In order to expose the spinal cord from the posterior side, it is necessary to remove:

Select one of the following:

  • Laminae, pedicles and ligamenta flava

  • Laminae, spinous preocess and ligamenta flava

  • Pedicles, spinous process and posterior logitudinal ligament

  • Transverse process, pedicles and ligamenta flava

Explanation

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