FRIDAY 10/19 Back Question Review

Question 1

What do we call the sensory component coming out of the spinal cord?

Answer 1

Dorsal root ganglia

Question 2

Winging

Answer 2

Long thoracic n. (Serratus anterior)

Question 3

Tuft of hair

Answer 3

Spina bifida occulta

Question 4

What nerve is subject to be damaged during mastectomies?

Answer 4

Long thoracic n.

Question 5

What muscle is responsible for the first 15° of abduction prior to the deltoids taking over?

Answer 5

Supraspinatus

Question 6

What abducts the humerus from 90° to 180°?

Answer 6

Trapezius

Serratus anterior

Question 7

What is responsible for conveying pain, pressure, touch, temperature, and proprioception to the CNS?

Answer 7

Somatic afferent

Question 8

Where is CSF found?

Answer 8

In the subarachnoid space

Question 9

What innervates the diaphragm?

Answer 9

Phrenic nerve (C3-C5)

Question 10

Spondylosis or “facet jumping” most often happens with what region of vertebrae?

Answer 10

Cervical

Question 11

What is a stabilizing ligament found in C1/C2 that attaches to the pedicles and helps anchor the dens in situ?

Answer 11

Cruciate ligament

Question 12

What surrounds the dura mater in the epidural space?

Answer 12

Internal vertebral plexus (of batson)

Question 13

What supplies the muscles responsible for extending and laterally bending the trunk?

Answer 13

Posterior intercostal a.

Question 14

What is the main movement of C1/C2 the atlantoaxial joint?

Answer 14

Rotation

Question 15

What two muscles are responsible for Adduction and medial rotation of the humerus?

Answer 15

Teres Major

Pectoralis major

Question 16

What two muscles are responsible lateral rotation of the humerus?

Answer 16

Teres minor

Infraspinatus

Question 17

What is the order of the three layers of CNS tissue?

Answer 17

Duramater
(Subdural space = painkillers)

Arachnoid mater
(Subarachnoid space = CSF)

Piamater

Question 18

Pain from lacerations or irritations of the skin of the back is conveyed to the central nervous system by which of the following?

Answer 18

Dorsal primary rami

Question 19

At what level is the conus medullaris located? What is the conus medullaris?

Answer 19

L1/L2

The area where the spinal cord splays out

Question 20

What fibers communicate pain from the body wall and limbs?

Answer 20

Somatic afferent fibers

Question 21

What is a unique characteristic of Baton’s Venous Plexus?

Answer 21

It is valveless

Question 22

Radiographic studies revealed that he crushed his spinal cord at vertebral level C6. Which of the following muscles will most likely be paralyzed?

Answer 22

Latissimus Doris

Question 23

Which of the following landmarks is most commonly used for the caudal epidural block?

Answer 23

Cornua of the sacral hiatus (Sacral Cornua)

Question 24

At which location are the spinal nerves most likely to be compressed in a disc herniation?

Answer 24

Posterolateral aspect of vertebra

Between the inferior and superior vertebral notches

Question 25

Radiographic examination reveals abnormal fusion of the C5 and C6 vertebrae and a high riding scapula. Which of the following conditions is characteristic of his symptoms?

Answer 25

Klippel-Feil syndrome

Question 26

What is spondylolistheis?

Answer 26

An anterior vertebral displacement

Question 27

What malformation results in herniation of the medulla and cerebellum into the foramen magnum?

Answer 27

Arnold-Chiari malformation

Question 28

What is spondylolysis?

Answer 28

Region between the superior and inferior articular facets is damaged or missing

Question 29

At the emergency department a plain radiograph of her cervical spine revealed a fracture of the odontoid process (dens). Which of the following was most likely injured?

Answer 29

Anterior arch of the atlas

Question 30

Radiographic examination reveals a whiplash injury in addition to hyperextension of her cervical spine. Which of the following ligaments will most likely be injured?

Answer 30

Anterior longitudinal ligament