Lec 2 - Spinal Cord

Question 1

Each spinal cord innervates a blank

Answer 1

Dermatome

Question 2

Spinal cords have ascending/descending pathways

Answer 2

Both

Question 3

Posterior horns of spinal cord has blank

Answer 3

Sensory interneurons

Question 4

Anterior horns of spinal cord has blank

Answer 4

Motor neurons

Question 5

Intermediate gray matter of the spinal cord has blank neurons central to autonomic ganglia

Answer 5

Autonomic

Question 6

Spinal cord is suspended in the dural tube by blank and blank

Answer 6

Denticulate ligaments, arachnoid trabeculae

Question 7

Posterior rootlets enter the spinal cord at the blank

Answer 7

Posterolateral sulcus

Question 8

Anterior rootlets leave the spinal cord at the blank

Answer 8

Anterolateral sulcus

Question 9

Spinal cord starts at blank and ends at blank

Answer 9

Pyramidal decusation, conus medullaris

Question 10

Extension of the pia past the conus medullaris that is anchored to the coccyx

Answer 10

Filum terminale

Question 11

31 segments of the spinal cord

Answer 11

8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal

Question 12

Part of spinal cord that supplies upper extremities

Answer 12

Cervical enlargement

Question 13

Part of spinal cord that supplies lower extremities

Answer 13

Lumbar enlargement

Question 14

During this fetal month, the cord and vertebral column grow at the same rate

Answer 14

3

Question 15

At birth, spinal cord ends at blank

Answer 15

L3

Question 16

Know numbers of spinal cords slide important

Answer 16

Ok

Question 17

This part of spinal cord has dorsal and ventral roots called the cauda equina

Answer 17

Lumbar cistern

Question 18

Law that is not entirely true but states that the dorsal root has only afferents and ventral root has only efferent fibers

Answer 18

Bell magendie law

Question 19

Gray matter is rich in blank

Answer 19

Cell bodies/dendrites

Question 20

Gray matter can form these or these

Answer 20

Nuclei, ganglia

Question 21

Slide how tracts are named important

Answer 21

Ok

Question 22

More blank the farther down the spinal cord

Answer 22

Gray matter

Question 23

Special sensory nucleus on the medial surface of the posterior horn of T1-L2

Answer 23

Clarke’s nucleus

Question 24

Clarke’s nucleus is a spinal relay from the leg to the cerebellum and does blank

Answer 24

Proprioception

Question 25

In the cervical and lumbar enlargements, there are additional motor neurons located blank in the blank horns

Answer 25

Laterally, anterior

Question 26

Two cervical cord specialized columns of motor neurons

Answer 26

Lateral spinal accessory nucleus, medial phrenic nucleus

Question 27

This nucleus extends from medulla to c5 and forms the accessory nerve

Answer 27

Lateral spinal accessory

Question 28

This innervates the diaphragm and is C3-C5

Answer 28

Medial phrenic nucleus

Question 29

Intermediate gray matter contains blank neurons

Answer 29

Efferent autonomic

Question 30

There are blank laminae of the spinal cord gray matter and have different functions

Answer 30

Rexed’s

Question 31

Marginal zone is lamina blank and has this function

Answer 31

1, pain/temp

Question 32

Substantia gelatinosa is this lamina and has this function

Answer 32

2, modulate pain/temp

Question 33

Picture toward the end with the fissures and sulci

Answer 33

Ok

Question 34

Each nerve pair innervates a single blank

Answer 34

Dermatome

Question 35

Memorize dermatomes slide

Answer 35

Ok