Meninges and CSF

Question 1

The CSF enters the venous circulation through the ___________.

Answer 1

superior sagittal sinus

Question 2

A ___________ herniation is a protrusion of the brainstem and cerebellum through the foramen magnum.

Answer 2

transforaminal (tonsillar)

Question 3

True or false: The dural sinuses are valveless.

Answer 3

True

Question 3

___________ receives the CSF from the fourth ventricle via the lateral foramina of Luschka. It also contains the facial nerve and the vestibulocochlear nerve.

Answer 3

Cerebellopontine angle cistern

Question 3

Do the temporal horns of the lateral ventricles contain choroid plexuses?

Answer 3

Yes

Question 3

A ___________ herniation is a herniation below the falx cerebri.

Answer 3

subfalcial

Question 4

__________ is a delicate, nonvascular connective tissue membrane between the dura mater and the pia mater.

Answer 4

Arachnoid

Question 5

Another name for the hypophysis is the _________.

Answer 5

Pituitary gland

Question 5

Does the cerebral aqueduct contain a choroid plexus?

Answer 5

No

Question 6

__________ is a delicate, highly vascular layer of connective tissue that closely covers the surface of the brain and spinal cord.

Answer 6

Pia mater

Question 7

The posterior fossa of the dura mater is innervated by ______________.

Answer 7

the vagal and upper spinal nerves

Question 8

___________ is the potential space between the dura and the arachnoid. It transmits the superior cerebral veins to the venous lacunae of the superior sagittal sinus.

Answer 8

Subdural space

Question 10

___________ lies between the cerebral hemispheres in the longitudinal cerebral fissure and contains the superior and inferior sagittal sinuses between its two layers.

Answer 10

Falx cerebri

Question 12

What are the three components of the meninges?

Answer 12

Pia mater

Arachnoid

Dura mater

Question 13

The third ventricle communicates with the fourth ventricle via ___________.

Answer 13

cerebral aqueduct

Question 14

___________ is the potential space between the periosteal and meningeal layers of the dura that contains the meningeal arteries and veins.

Answer 14

Cranial epidural space

Question 15

__________ consists of a nonneural band of tissue that is a condensation of the pia mater and extends from the conus medullaris to the end of the dural sac, fusing with it.

Answer 15

Filum terminale

Question 16

Which space contains the CSF?

Answer 16

Subarachnoid space

Question 17

__________ consist of two lateral flattened bands of pial tissue and adhere to the spinal dura mater with 21 attachments.

Answer 17

Denticulate ligaments

Question 17

Do the occipital horns of the lateral ventricles contain choroid plexuses?

Answer 17

No

Question 19

The supratentorial dura is innervated by _________.

Answer 19

the trigeminal nerve

Question 20

The lateral ventricles communicate with the third ventricle via the ___________.

Answer 20

Interventricular foramina of Monro

Question 21

___________ forms the roof of the hypophyseal fossa and contains an aperture through which the hypophyseal stalk (infundibulum) passes.

Answer 21

Diaphragma sellae

Question 23

___________ is located in the midline between the cerebellum and the medulla and it receives CSF from the fourth ventricle via the median foramen of Magendie.

Answer 23

Cerebellomedullary cistern (cisterna magna)

Question 24

___________ are the two ventricles located within the cerebral hemispheres.

Answer 24

Lateral ventricles

Question 26

The hypophyseal stalk, or pituitary stalk, is also called the ___________.

Answer 26

Infundibulum

Question 27

A ___________ herniation is a protrusion of the brain through the tentorial incisure.

Answer 27

transtentorial (uncal)

Question 28

___________ enter the venous dural sinuses and permit the one-way flow of CSF from the subarachnoid space into the venous circulation.

Answer 28

Arachnoid granulations or arachnoid villi