FRIDAY 10/19 Back Question Review Flashcards
What do we call the sensory component coming out of the spinal cord?
Dorsal root ganglia
Winging
Long thoracic n. (Serratus anterior)
Tuft of hair
Spina bifida occulta
What nerve is subject to be damaged during mastectomies?
Long thoracic n.
What muscle is responsible for the first 15° of abduction prior to the deltoids taking over?
Supraspinatus
What abducts the humerus from 90° to 180°?
Trapezius
Serratus anterior
What is responsible for conveying pain, pressure, touch, temperature, and proprioception to the CNS?
Somatic afferent
Where is CSF found?
In the subarachnoid space
What innervates the diaphragm?
Phrenic nerve (C3-C5)
Spondylosis or “facet jumping” most often happens with what region of vertebrae?
Cervical
What is a stabilizing ligament found in C1/C2 that attaches to the pedicles and helps anchor the dens in situ?
Cruciate ligament
What surrounds the dura mater in the epidural space?
Internal vertebral plexus (of batson)
What supplies the muscles responsible for extending and laterally bending the trunk?
Posterior intercostal a.
What is the main movement of C1/C2 the atlantoaxial joint?
Rotation
What two muscles are responsible for Adduction and medial rotation of the humerus?
Teres Major
Pectoralis major
What two muscles are responsible lateral rotation of the humerus?
Teres minor
Infraspinatus
What is the order of the three layers of CNS tissue?
Duramater
(Subdural space = painkillers)
Arachnoid mater (Subarachnoid space = CSF)
Piamater
Pain from lacerations or irritations of the skin of the back is conveyed to the central nervous system by which of the following?
Dorsal primary rami
At what level is the conus medullaris located? What is the conus medullaris?
L1/L2
The area where the spinal cord splays out
What fibers communicate pain from the body wall and limbs?
Somatic afferent fibers
What is a unique characteristic of Baton’s Venous Plexus?
It is valveless
Radiographic studies revealed that he crushed his spinal cord at vertebral level C6. Which of the following muscles will most likely be paralyzed?
Latissimus Doris
Which of the following landmarks is most commonly used for the caudal epidural block?
Cornua of the sacral hiatus (Sacral Cornua)
At which location are the spinal nerves most likely to be compressed in a disc herniation?
Posterolateral aspect of vertebra
Between the inferior and superior vertebral notches
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?
Klippel-Feil syndrome
What is spondylolistheis?
An anterior vertebral displacement
What malformation results in herniation of the medulla and cerebellum into the foramen magnum?
Arnold-Chiari malformation
What is spondylolysis?
Region between the superior and inferior articular facets is damaged or missing
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?
Anterior arch of the atlas
Radiographic examination reveals a whiplash injury in addition to hyperextension of her cervical spine. Which of the following ligaments will most likely be injured?
Anterior longitudinal ligament
