Cns Self Test

Front 1

The operation which involves removal of a disk of bone from the skull is termed:

Back 1

trephination

Front 2

In an adult, the spinal cord terminates...

Back 2

at L1-L2

Front 3

The floor of the cranial cavity is divided into how many fossae?

Back 3

three

Front 4

The major transverse pathway connecting the cerebral hemispheres is the:

Back 4

corpus callosum

Front 5

The cerebellum, pons, and medulla form the:

Back 5

hindbrain

Front 6

The subarachnoid spaces surrounding the brain widen in some areas to form cisterns, the largest of which is:

Back 6

cisterna magna

Front 7

The third and fourth ventricles are connected by the:

Back 7

Aqueduct of Sylvius

Front 8

How many ventricles comprise the ventricular system of the brain?

Back 8

four

Front 9

Another name for the brain is:

Back 9

encephalon

Front 10

The diencephalon is composed primarily of the:

Back 10

thalamus and hypothalamus

Front 11

Which of the following is NOT a portion of the brainstem?

Back 11

cerebellum

Front 12

Which portion of the brain is continuous with the spinal cord?

Back 12

medulla oblongata

Front 13

Which of the meningeal layers closely adheres to the surface of the brain?

Back 13

pia mater

Front 14

Name the potential space between the dura mater and the inner table of the skull.

Back 14

epidural space

Front 15

What fluid normally fills the subarachnoid space?

Back 15

cerebrospinal fluid

Front 16

The temporal lobes of the cerebrum and the hypophysis cerebri rest upon the ________ fossa of the cranial base.

Back 16

middle

Front 17

Which of the following is a midline structure?

Back 17

fourth ventricle

Front 18

Each cerebral hemisphere may be divided into ______ lobes.

Back 18

five

Front 19

The ______ fissure lies in the midsagittal plane and divides the cerebrum into hemispheres.

Back 19

longtitudinal

Front 20

The tapered termination of the spinal cord is termed the:

Back 20

conus medullaris

Front 21

Give another name for the aqueduct of Sylvius:

Back 21

cerebral aqueduct

Front 22

In pneumoencephalography, air may be injected into the subarachnoid space at either the L3-L4 interspace or at the:

Back 22

base of the skull into the cisterna magna

Front 23

Each of the lateral ventricles has a centrally located body and three projections or _____ extending from it.

Back 23

horns

Front 24

Each lateral ventricle is connected to the third ventricle by the:

Back 24

interventricular foramen

Front 25

Name the gland located just posterior to the third ventricle.

Back 25

pineal

Front 26

The foramina of Luschka and the foramen of Majendie connect the fourth ventricle to the:

Back 26

cisterna magna

Front 27

Cerebrospinal fluid is manufactured by the _______ of each ventricle.

Back 27

choroid plexus

Front 28

The condition termed ________ results from abnormal accumulation of the cerebrospinal fluid within the ventricular system.

Back 28

hydrocephalus

Front 29

Air rising from the cisterna magna would enter which ventricle first?

Back 29

fourth

Front 30

Which of the following portions of the ventricular system is NOT a midline strucutre?

Back 30

Foramen of Luschka

Front 31

Extending anteriorly from the body of each lateral ventricle is the:

Back 31

frontal horn

Front 32

Extending posteriorly from the body of each lateral ventricle is the:

Back 32

occipital horn

Front 33

Name the foramen lying within each lateral recess of the fourth ventricle.

Back 33

Foramen of Luschka

Front 34

Each convolution which marks the surfaces of the cerebral hemispheres is termed a/an:

Back 34

gyrus

Front 35

The medulla oblongata is located at the level of the:

Back 35

foramen magnum

Front 36

The frontal lobes of the cerebrum rests upon the ______ fossa of the cranial base.

Back 36

anterior

Front 37

Which of the meningeal layers literally means hard or tough mother?

Back 37

dura mater

Front 38

The two major sub-divisions of the adult nervous system are:

Back 38

CNS, PNS

Front 39

What part of the brain is associated with hearing, sight, and smell?

Back 39

cerebrum

Front 40

The folds of the brain are called:

Back 40

gyri

Front 41

The gray appearance of the spinal cord in cross-section is due from what?

Back 41

nerve cell bodies

Front 42

The neural tube serves as the development center for what?

Back 42

brain and spinal cord

Front 43

What is the functional unit of the nervous system?

Back 43

neurons (50% of cells)

Front 44

Name the 3 parts of a neuron.

Back 44

cell body, dendrite, axon

Front 45

The _______ receives impulses and carries them to the body; and the _____ relays impulses away from the nerve cell body.

Back 45

dendrite, axon

Front 46

What are neuroglia?

Back 46

nerve cells that perform functions of support and protection in connective tissue; makes up 50% of all nerve cells
other 50% are neurons

Front 47

What are the major parts of the brain (use both names).

Back 47

forebrain (prosencephalon)
midbrain (mesecephalon)
hindbrain (rhombencephalon)

Front 48

What are the two main parts of the forebrain?

Back 48

diencephalon and cerebrum

Front 49

The CNS is divided into the _______ and the ______.

Back 49

brain and spinal cord

Front 50

The largest portion of the brain is the ________ and has ____ lobes.

Back 50

cerebrum 5

Front 51

The coordination of the fine muscular movements of the extremities is primarily accomplished by the _________.

Back 51

cerebellum

Front 52

Where are the lateral ventricles located in the brain?

Back 52

cerebral hemispheres

Front 53

The _______ are a collection of 3 membraneous layers that protect the brain and spinal cord.

Back 53

meninges

Front 54

The two layers of the dura mater which form the _________ serves to drain the blood from the brain.

Back 54

cranial venous sinuses

Front 55

List 3 things in the body that the medulla oblongata controls.

Back 55

blood pressure
respiration rate
heart rate

Front 56

The narrow canal that connects the 3rd and 4th ventricles is the ________ or the __________.

Back 56

cerebral aqueduct
aqueduct of Sylvius

Front 57

The ______ is the innermost layer of the meninges.

Back 57

pia mater

Front 58

What is the purpose of the CSF?

Back 58

protects and cushions the brain

Front 59

What forms the host (subarachnoid space) for the CSF?

Back 59

pia mater and arachnoid

Front 60

The interventricular foramen of the Foramen of _______ permits the passage of fluids between the _______ and _________ ventricles.

Back 60

Mourno
third
right and left lateral

Front 61

TIc Douloureux is a mechanical irritation of the _______ nerve and causes severe pain in the facial region.

Back 61

trigeminal

Front 62

There are ____ pairs of cranial nerves; and _____ pairs of nerves that originate at the spinal cord.

Back 62

12
31

Front 63

The hypothalamus controls the activity of which gland?

Back 63

pituitary

Front 64

Define synapse.

Back 64

junction where impulses are passed from one nerve cell to another

Front 65

List three major functions of the nervous system.

Back 65

1. monitors all info about changes occurring both inside and outside the body

2. it processes and interprets the info received and integrates it in order to make decisions

3. it commands responses by activating muscles, glands, and other parts of the nervous system

Front 66

Masses of gray matter embedded deep within the cerebral white matter are _______.

Back 66

basal nuclei

Front 67

The _______ is a thin layer of gray matter on outer surface of cerebral hemispheres and cerebellum.

Back 67

cortex

Front 68

The ______ accounts for more than 60% of total brain weight.

Back 68

cerebrum

Front 69

The _____________ separates the lateral ventricles.

Back 69

septum pellucidum

Front 70

A fold of the dura mater which attaches to the crista galli of the ethmoid bone is called the _________.

Back 70

falx cerebri

Front 71

may cause medulla oblongata to be wedged into foramen magnum by pressure of blood

Back 71

intracranial hemorrhage

Front 72

total unresponsiveness to stimulation

Back 72

coma

Front 73

TIA

Back 73

transcient ischemic attack

Front 74

CVA

Back 74

cerebrovascular accident (stroke)

Front 75

progressive degeneration of brain with abnormal protein deposits

Back 75

Alzheimer's disease

Front 76

slight and transcient brain injury

Back 76

concussion

Front 77

traumatic injury that destroys brain tissue

Back 77

contusion

Front 78

MS

Back 78

multiple sclerosis- autoimmune disorder with extensive demyelination

Front 79

Where is CSF produced?

Back 79

choroid plexus

Front 80

MD

Back 80

muscular dystrophy- hereditary disease characterized by progressive weakening of muscles

Front 81

traumatic flexion of extension of neck

Back 81

whiplash

Front 82

loss of motor function

Back 82

paralysis

Front 83

paralysis of one side of body due to brain injury rather than injury to spinal cord

Back 83

hemiplegia

Front 84

result of transection of cord between T11- L1

Back 84

paraplegia

Front 85

loss of sensation

Back 85

paresthesia

Front 86

result of permanent injury to C5-C6

Back 86

quadriplegia

Front 87

paralysis without atrophy (lesions of upper motor neurons)

Back 87

spastic paralysis

Front 88

transcient period of functional loss induced by trauma to spinal cord

Back 88

spinal shock