The Brain Blood Circulation

Question 1

527

Answer 1

Brain is supplied with blood via common carotid arteries and vertebral arteries

Question 2

528

Answer 2

Right common carotid artery arises from innominate artery whereas the left common carotid artery arises from the arch of the aorta

Question 3

530

Answer 3

Right and left vertebral arteries extend upward to base of brain where they unite to form basilar artery

Question 4

536

Answer 4

Basilar artery branches into right + and left posterior cerebral arteries

Question 5

544

Answer 5

Right and left comon carotid arteries extend upwards along trachea until they reach upper border of thyroid cartilage where they subdivide in external carotid and internal carotid arteries

Question 6

545

Answer 6

Ext Carotid arteries supply blood to head and neck, Int carotid arteries supply blood to brain, eyes and nose

Question 7

547

Answer 7

First major branch of internal carotid artery is opthalmic artery

Question 8

551

Answer 8

Other branches of the internal carotid arteries go to the brain

Question 9

552

Answer 9

Right and left internal carotid arteries reach base of the brain, they divide into several branches

Question 10

559

Answer 10

Posterior communicating arteries lead to corresponding posterior cerebral

Question 11

567

Answer 11

After branching off, internal carotid artery subdivides into anterior cerebral artery and middle cerebral artery

Question 12

574

Answer 12

The right and left anterior cerebral arteries are connected via anterior communicating arteries

Question 13

583

Answer 13

Circle of Willis is formed by Anterior cerebral arteries, which are branches of the internal carotid arteries

Question 14

599

Answer 14

From the cerebral arteries, blood flows to all part of brain and then to the cerebral veins

Question 15

602

Answer 15

From cerebral veins blood flows into various cranial venous sinuses. Uppermost of the these sinuses is the superior sagittal sinus

Question 16

608

Answer 16

Superior Sagittal Sinus connects to the straight sinus

Question 17

612

Answer 17

Superior sagittal sinus connects with the straight sinus to form the left and right paired transverse sinuses

Question 18

616

Answer 18

Leading into the straight sinus is the inferior sagittal sinus

Question 19

621

Answer 19

The paired transverse sinus lead into the right and left jugular veins

Question 20

627

Answer 20

The right internal jugular vein joins the right subclavian vein to form the right innominate vein. The left internal jugular vein joins the left subclavian vein to form the left innominate

Question 21

631

Answer 21

The right and left innominate veins lead into the superior vena cava which then empties into the right atrium of the heart

Question 22

671

Answer 22

Connecting with the sinus is the inferior sagittal sinus