Neurolab 2

Question 1

Internal carotid artery

Answer 1

Branch of common carotid in the neck; passes through the carotid canal and siphon to end at the base of the brain as the anterior and middle cerebral arteries

Question 2

Anterior cerebral artery

Answer 2

Supplies the medial portions of the frontal and parietal lobes, and some of the occipital lobe

Question 3

Middle cerebral artery

Answer 3

Supplies the lateral portions of the frontal, parietal and temporal lobes, and some of lateral occipital lobe

Question 4

Anterior communicating artery

Answer 4

Communicating branch between the two anterior cerebral arteries

Question 5

Anterior choroidal artery

Answer 5

Supplies the choroid plexus beginning in the temporal pole

comes off the internal carotid artery

Question 6

Posterior communicating artery

Answer 6

Communicating branch between the internal carotid and the posterior cerebral arteries; supplies posterior thalamus

Question 7

Vertebral Arteries

Answer 7

Originate from the subclavian artery and pass through the cervical intervertebral foramina to enter the cranial cavity through the foramen magnum

Question 8

Posterior inferior cerebellar artery

Answer 8

Branch of the vertebral artery; supplies the lateral brain stem and the posterior-inferior cerebellum

Question 9

Anterior spinal artery

Answer 9

Originates from vertebral artery and supplies the ventral and intermediate gray mater of the spinal cord as well as the ventral and lateral funiculi; some branches supply caudal ventral medulla.

Question 10

Basilar artery

Answer 10

The two vertebral join together at the junction of the medulla and pons to form the basilar artery; continues to the junction of the pons and midbrain where its terminal branches are the posterior cerebral arteries

Question 11

Anterior inferior cerebellar artery

Answer 11

Caudal branch of basilar a.; supplies the anterior inferior cerebellum; usually gives rise to the internal auditory (labyrinthine) artery that supplies the inner ear

Question 12

Pontine artery

Answer 12

Short and long circumferential arteries that supply the pons

Question 13

Superior cerebellar artery

Answer 13

Rostral branch of the basilar artery that supplies the superior cerebellum and the rostral pons and midbrain

Question 14

Posterior cerebral artery

Answer 14

Terminal branch of the basilar artery; supplies the midbrain and the occipital and temporal lobes of the brain

Question 15

Dura

Answer 15

Tough connective tissue composed of periosteal and meningeal layers

Question 16

Meningeal arteries

Answer 16

Middle meningeal artery enters cranial cavity through foramen spinosum; anterior and posterior meningeal arteries enter through various foramina in base of skull

Question 17

Superior sagittal sinus

Answer 17

Located in the upper portion of the falx cerebri

Question 18

Cerebral vein (superficial)

Answer 18

Venous drainage of the cerebrum into the dural sinuses, in this case the superior sagittal sinus

Question 19

Arachnoid

Answer 19

Consists of the arachnoid membrane and trabeculae; cerebrospinal fluid located between the arachnoid and the pia

Question 20

Tentorium cerebelli

Answer 20

Separates the cerebellum (posterior fossa) from the cerebral hemispheres (supratentorial)

Question 21

Diaphragma sella

Answer 21

Covers over the sella turcica that contains the pituitary gland

Question 22

Arachnoid villi (granulations)

Answer 22

Projections of the arachnoid through the dura and into the dural sinuses; site of resorption of cerebrospinal fluid

Question 23

Cisterna magna

Answer 23

Large CSF containing space between the cerebellum and the medulla; located immediately above the foramen magnum

Question 24

Lateral ventricle (anterior horn, body, atrium)

Answer 24

Found within the substance of the cerebral hemisphere and brain stem; contains CSF

Question 25

Choroid plexus

Answer 25

Responsible for forming CSF; located in the temporal horn and body of the lateral ventricles, the roof of the 3rd ventricle, and in the inferior medullary vellum of the 4th ventricle

Question 26

Interventricular foramen

Answer 26

Leads from the lateral ventricle to the third ventricle

Question 27

Third ventricle

Answer 27

Located in the midline between the diencephalons (thalamus, hypothalamus); contains CSF

Question 28

Cerebral aqueduct

Answer 28

Located in the midbrain; connect the third ventricle with the fourth ventricle

Question 29

Fourth ventricle

Answer 29

Located between the pons-medulla and the cerebellum; one medial foramen (foramen of Magendie) and two lateral foramen (foramen of Luschka) to the subarachnoid space