BLOOD SUPPLY OF BRAIN & SPINAL CORD

Question 1

Posterior artery may arise from vertebral artery and____

Answer 1

Posterior inferior cerebellar artery

Question 2

It descends on the posterior surface of the spinal cord close to the posterior roots of the spinal nerves

Answer 2

Posterior spinal artery

Question 3

Single artery descends on the anterior surface of the medulla and spinal cord and is embedded in the pia mater along the median fissure

Answer 3

Anterior spinal artery

Question 4

Largest branch of the vertebral artery and passes on an irregular course between the medulla and the cerebellum.

Answer 4

Posterior inferior cerebellar artery

Question 5

The brain is supplied by the -?- and the -?-.

They lie in the -?-

Answer 5

Two carotid arteries
Two vertebral arteries
Subarachnoid space

Question 6

Major source of blood to the lower two-thirds of the spinal cord

Answer 6

great anterior medullary artery of Adamkiewicz

Question 7

Arteries that enter the vertebral canal annd anastomose with the anterior and posterior spinal arteries

Answer 7

FEEDER ARTERIES

Question 8

The local dilatation in the position of the bifurcation of the common carotid arteries?

Answer 8

Carotid sinus

Question 8

Supplies the anterior two-thirds of the spinal cord

Answer 8

ANTERIOR SPINAL ARTERY

Question 9

Branch of vertebral arteries which are very small branches that are distributed to the medulla

Answer 9

Medullary arteries

Question 10

Supply the posterior third oof the spinal cord

Answer 10

POSTERIOR SPINAL ARTERIES

Question 11

The ICA enters the skull by way of ______?

Answer 11

Carotid canal of the temporal bone

Question 12

Formed by the union of the two vertebral arteries

Answer 12

Basilar Artery

Question 13

Branch of basilar artery that are numerous small vessels that enter the substance of the pons

Answer 13

Pontine arteries

Question 14

Branch of basilar artery that is a long, narrow artery that accompanies the facial and the vestibulocochlear nerves into the internal acoustic meatus and supplies the internal ear.

Answer 14

Labyrinthine artery

Question 15

Branch of basilar artery that is often arises as a branch of the anterior inferior cerebellar artery.

Answer 15

Labyrinthine artery

Question 16

Branch of basilar artery that passes posteriorly and laterally and supplies the anterior and inferior parts of the cerebellum.

Answer 16

anterior inferior cerebellar artery

Question 17

Branch of basilar artery that arises close to the termination of the basilar artery

Answer 17

superior cerebellar artery

Question 18

Branch of basilar artery that winds around the cerebral peduncle and supplies the superior surface of the cerebellum.

Answer 18

superior cerebellar artery

Question 19

Branch of basilar artery that curves laterally and backward around the midbrain and is joined by the posterior communicating branch of the internal carotid artery.

Answer 19

posterior cerebral artery

Question 20

artery supplies the visual cortex

Answer 20

posterior cerebral artery

Question 21

Branch of posterior cerebral artery that supply the inferolateral and medial surfaces of the temporal lobe and the lateral and medial surfaces of the occipital lobe

Answer 21

Cortical branches

Question 22

Branch of posterior cerebral artery pierce the brain substance and supply parts of the thalamus and the lentiform nucleus as well as the midbrain, the pineal, and the medial geniculate bodies.

Answer 22

Central branches

Question 23

Branch of posterior cerebral artery that enters the inferior horn of the lateral ventricle and supplies the choroid plexus; it also supplies the choroid plexus of the third ventricle.

Answer 23

choroidal branch

Question 24

The ICA bifurcates in the medial end of the -?- where it divides into the -?- and -?-

Answer 24

Lateral Cerebral Sulcus Anterior Cerebral Artery Middle Cerebral Artery

Question 25

This artery emerges as the ICA emerges from the cavernous sinus?

Answer 25

Ophthalmic Artery

Question 26

This artery enters the optic canal and supplies the eye and and other orbital structures

Answer 26

Opthalmic Artery

Question 27

The artery that originates on the ICA and connects it to the posterior cerebral artery

Answer 27

Posterior Communicating Artery

Question 28

Artery that originates from the ICA and passes posteriorly to the optic tract and ends in the choroid plexus?

Answer 28

Choroidal Artery

Question 29

Artery that is the smaller terminal branch of the ICA?

Answer 29

Anterior Cerebral Artery

Question 30

The two anterior cerebral artery is connected by the?

Answer 30

Anterior Communicating Artery

Question 31

Does the anterior cerebral artery anastomose with the posterior cerebral artery. True or False?

Answer 31

True

Question 32

The cortical branch of the anterior cerebral artery supplies the -?- and 1 inch. of the -?- w/c includes the ___ area

Answer 32

Medial surface of the cerebral cortex lateral surface leg

Question 33

The largest branch of the ICA, it runs laterally in the lateral cerebral sulcus?

Answer 33

Middle Cerebral Artery

Question 34

Lies in the interpeduncular fossa at the base of the brain

Answer 34

Circle of Willis

Question 35

Circle of Willis allows blood that enters by either internal carotid or vertebral arteries to be distributed to any part of both_____

Answer 35

cerebral hemispheres

Question 36

The internal capsule and _______ are supplied mainly by the medial and lateral striate central branches of the middle cerebral artery; the central branches of the anterior cerebral artery supply the remainder of these structures.

Answer 36

corpus striatum

Question 37

Area of brain that is supplied mainly by branches of the posterior communicating, basilar, and posterior cerebral arteries

Answer 37

Thalamus

Question 38

Area of brain that is supplied by the posterior cerebral, | superior cerebellar, and basilar arteries.

Answer 38

Midbrain

Question 39

Area of brain that is supplied by the basilar and the anterior,inferior, and superior cerebellar arteries.

Answer 39

Pons

Question 40

Area of brain that is supplied by the vertebral, | anterior and posterior spinal, posterior inferior cerebellar, and basilar arteries.

Answer 40

medulla oblongata

Question 41

The cortical branch of the middle cerebral artery supplies the whole -?- except the 1 inch narrow strip supplied by the -?- and the -?- and -?- supplied by the posterior cerebral artery

Answer 41

Lateral surface of the cerebral cortex Anterior cerebral artery Occipital pole Inferolateral surface of the hemisphere

Question 42

This artery supplies the entire motor area except the -?-

Answer 42

Leg area

Question 43

The central branches of the anterior and middle cerebral artery supplies the -?-, -?- and -?-

Answer 43

Caudate nuclei Lentiform nuclei Internal capsule

Question 44

An artery that is a branch of the subclavian artery?

Answer 44

Vertebral artery

Question 45

The vertebral artery does not pass the foramina of this cervical transverse process?

Answer 45

C7

Question 46

The vertebral artery enters the skull through the _____.

Answer 46

Foramen magnum

Question 47

The vertebral artery joins the opposite vessel at the lower border of the pons to form the -?-

Answer 47

Basilar artery

Question 48

Small branches that supply the bone and dura mater of the posterior cranial fossa?

Answer 48

Meningeal branches

Question 49

Branches of arteries outside the vertebral column (deep, cervical, intercosal, and lumbar arteries)

Answer 49

SEGMENTAL SPINAL ARTERIES

Question 50

Branches of arteries outside the vertebral column (deep, cervical, intercosal, and lumbar arteries)

Answer 50

SEGMENTAL SPINAL ARTERIES

Question 51

What are the arteries that arise from segmental spinal artery after entering the vertebral canal?

Answer 51

ANTERIOR and POSTERIOR RADICULAR ARTERIES

Question 52

These capillaries are constituent of the blood-brain barrier

Answer 52

Continuous capillary

Question 53

A rise in the carbon dioxide and hydrogen ion concentrations and a lowering of the oxygen tension results into ________.

Answer 53

VASODILATATION

Question 54

What is the innervation of cerebral arteries?

Answer 54

SYMPATHETIC POSTGANGLIONIC NERVEE FIBERS

Question 55

Sympathetic postganglionic fibers are derived from the __________?

Answer 55

SUPERIOR CERVICAL SYMPATHETIC GANGLION

Question 56

Stimulation of sympathetic postganglionic nerve fibers causes _____________ of the cerebral arteries?

Answer 56

VASOCONSTRICTION

Question 57

Enumerate the blood supply of the cerebellum. (3)

Answer 57

1. SUPERIOR CEREBELLAR ARTERY 2. ANTERIOR INFERIOR CEREBELLAR ARTERY 3. POSTERIOR INFERIOR CEREBELLAR ARTERY