spine

Question 1

joint connecting the vertebral bodies

Answer 1

cartilaginous joint (disc of fibrocartilage)

Question 2

joint connecting articular processes

Answer 2

synovial joint

Question 3

conus medullaris

Answer 3

spinal cord tapers off into

Question 4

filum terminale

Answer 4

prolongation of pia mater, descends and attaches to the coccyx

Question 5

inner

Answer 5

grey matter

Question 6

outer

Answer 6

white matter

Question 7

location of lateral gray column

Answer 7

thoracic and upper lumbar segments

Question 8

central canal is continuous with central canal of

Answer 8

caudal part of medulla oblongata

Question 9

central canal is _____ superiorly and _____ inferiorly

Answer 9

open into fourth ventricle and closed

Question 10

spinal tracts

Answer 10

ascending, descending, intersegmental tracts

Question 11

spinal lemniscus

Answer 11

lateral spinothalamic tract, anterior spinothalamic tract, spinotectal tract

Question 12

visceral sensory tracts ascend via the

Answer 12

posterior or lateral gray columns

Question 13

painful and thermal sensations

Answer 13

lateral spinothalamic tract

Question 14

light (crude) touch and pressure

Answer 14

anterior spinothalamic tract

Question 15

discriminatory touch, vibratory sensation, conscious muscle joint sense

Answer 15

posterior white columns (fasciculus gracilis and fasciculus cuneatus)

Question 16

fasciculus gracilis

Answer 16

T7 and below

Question 17

fasciculus cuneatus

Answer 17

T6 and above

Question 18

unconscious muscle joint sense to the cerebellum

Answer 18

anterior and posterior spinocerebellar tracts

Question 19

second order neurons for spinocerebellar tracts

Answer 19

nucleus dorsalis (Clarke’s column); enter via the posterior root ganglion

Question 20

spinovisual reflexes via the superior colliculus

Answer 20

spinotectal tract

Question 21

afferent pathway to the reticular formation affecting levels of consciousness

Answer 21

spinoreticular tract

Question 22

indirect pathway from cutaneous and proprioceptive organs to the cerebellum

Answer 22

spino-olivary tract

Question 23

corticospinal tract

Answer 23

voluntary, skilled, discrete movement

Question 24

reticulospinal tract

Answer 24

control of voluntary movement or reflex activity

Question 25

tectospinal tract

Answer 25

resreflex postural movements in response to visual stimuli

Question 26

rubrospinal tract

Answer 26

activity of flexors and inhibit activity of extensors or antigravity muscles

Question 27

vestibulospinal tract

Answer 27

activity of extensors and inhibit activity of flexors; postural activity associated with balance

Question 28

olivospinal tract

Answer 28

doubtful if existing; muscular activity

Question 29

anterior corticospinal tract

Answer 29

descending corticospinal tract that do not cross in the decussation at the pyramids

Question 30

middle lemniscus

Answer 30

internal arcuate fibers (from nucleus cuneatus and nucleus gracilis)