SPINAL CORD (FILL IN THE BLANKS)

Question 1

the spinal cord is part of

Answer 1

central nervous system

Question 2

the spinal cord extends from the

Answer 2

the foramen magnum to the level of first or second lumbar vertebrae

Question 3

the outermost layer of meninges surrounding the spinal cord is

Answer 3

dura mater

Question 4

the space between the arachnoid mater and the pia mater is called

Answer 4

the subarachnoid space, which contains cerebrospinal fluid

Question 5

the gray matter of spinal cord is located

Answer 5

in the center and is shaped like a butterfly

Question 6

the anterior horns of he gray matter contain

Answer 6

cell bodies of motor neuron

Question 7

part of gray matter that receive sensory information

Answer 7

posterior horn

Question 8

the white matter of spinal cord is composed of

Answer 8

myelinated nerve fibers

Question 9

descending tracts in spinal cord carry

Answer 9

motor commands from the brain to the muscles

Question 10

ascending tracts in spinal cord carry

Answer 10

sensory information to the brain

Question 11

the cervical enlagement of the spinal cord is associated with

Answer 11

the nerves that supply the upper limbs

Question 12

the lumbar enlargement is related to

Answer 12

the nerves of the lower limbs

Question 13

the spinal cord is protected by

Answer 13

vertebral column

Question 14

the intervertebral discs help to

Answer 14

cushion and provide flexibility to the spinal column

Question 15

the filum terminale is

Answer 15

a fibrous extension of the spinal cord that anchors it to the coccyx

Question 16

the dorsal root of a spinal nerve contains

Answer 16

sensory fibers

Question 17

the ventral root of a spinal nerve contains

Answer 17

motor fibers

Question 18

the spinal nerve are formed bythe ventral ramji of cervical

Answer 18

the union of the dorsal and ventral roots. there are 31 pairs of spinal nerves

Question 19

the brachial plexus is formed by

Answer 19

the ventral rami of cervical and upper thoracic spinal nerves and supplies the upper limb

Question 20

the lumbosacral plexus is formed by

Answer 20

the ventral rami of the lumbar and sacral spinal nerves and supplies the lower limb

Question 21

the spinothalamic tract is

Answer 21

an ascending tract that carries pain and temperature sensations

Question 22

the dorsal column-medial lemniscus pathway is responsible for

Answer 22

carrying fine touch, vibration, and proprioceptive information

Question 23

the corticospinal tracts are

Answer 23

the main descending tracts for voluntary motor control

Question 24

the spinal cord has a role in

Answer 24

reflex arcs, which allow for rapid, involuntary responses to stimuli

Question 25

a monosynaptic reflex involves

Answer 25

only one synapse between a sensory neuron and motor neuron

Question 26

the patellar reflex is an example of

Answer 26

monosyaptic reflex

Question 27

a polysynaptic reflex involves

Answer 27

multiple synapse and interneurons

Question 28

the withdrawal reflex is

Answer 28

a polysnaptic reflex that helps to protect body from harmful stimuli

Question 29

The spinal cord segments are named according to

Answer 29

the level of the vertebral column from which the spinal nerves emerge.

Question 30

The conus medullaris is

Answer 30

the tapered end of the spinal cord.

Question 31

The epidural space is

Answer 31

located outside the dura mater and can be used for anesthesia.

Question 32

The subdural space is a

Answer 32

potential space between the dura mater and the arachnoid mater.

Question 33

The blood supply to the spinal cord comes from

Answer 33

the anterior spinal artery and the posterior spinal arteries.

Question 34

The anterior spinal artery supplies

Answer 34

the anterior two - thirds of the spinal cord.

Question 35

The posterior spinal arteries supply

Answer 35

the posterior one - third of the spinal cord

Question 36

The gray commissure

Answer 36

connects the two sides of the gray matter in the spinal cord.

Question 37

The white commissure contains

Answer 37

nerve fibers that cross from one side of the spinal cord to the other.

Question 38

the rubrospinal tract is involved in the control of

Answer 38

muscle tone and movement

Question 39

the vestibulospinal tract helps to

Answer 39

mantain balance and posture

Question 40

the tectospinal tratc is involved in

Answer 40

reflexes related to visual and auditory stimuli

Question 41

the reticulospinal tracts paly role in

Answer 41

regulating muscle activity and arousal

Question 42

the fasciculus gacils and fasciculus scuneatus are part of

Answer 42

dorsal column- medial lemniscus pathway .

Question 43

the fasciculus gracilis carries

Answer 43

sensory information from lower part of the body

Question 44

the fasciculus cuneatus carries

Answer 44

sensory information from the upper part of the body

Question 45

the lateral corticospinal tract controls

Answer 45

fine,skilled movements of the limbs

Question 46

the anterior corticospinal tract is involved in

Answer 46

the control of trunk and proximal limb muscles

Question 47

damage to spinal cord can result in

Answer 47

paralysis or loss of sensation

Question 48

a complete spinal cord injury results in

Answer 48

total loss of function below the level of the injury

Question 49

an incomplete spinal cord injury allows for

Answer 49

some preservaton of function below the level of the injury

Question 50

the spinal cord injury syndrome that affects the anterior part of spinal cord is called

Answer 50

anterior cord syndrome