Blood Vessels Of Head

Question 1

What are the parts of the internal carotid arteries?

Answer 1

Cervical petrous cavernous cerebral

Question 2

Where is the cervical part located and where does it begin and end

Answer 2

Located in superior region of neck at c3/4 and terminates common carotid artery

Question 3

Where is the petrous part located?

Answer 3

Central canal of the petrous portion of the temporal bone

Question 4

Where does the cavernous part course?

Answer 4

Passes lateral to the sella turcica of sphenoid bone along carotid groove and through the cavernous sinus

Question 5

What does the cerebral part of the internal carotid artery divide into?

Answer 5

Anterior cerebral middle cerebral and posterior communicating arteries

Question 6

What is the carotid siphon?

Answer 6

U shapes part of internal carotid artery that is formed by portions of the cavernous and cerebral parts the opthalamic artery is an anterior branch of this artery

Question 7

What does the cerebral arterial circle form an anastomosis around?

Answer 7

Optic chiasm and infundibulum of pituitary gland

Question 8

What is the cerebral arterial circle formed by?

Answer 8

Posterior cerebral, posterior communicating, internal carotid, anterior cerebral and anterior communicating

Question 9

What is the largest terminal branch of the internal carotid?

Answer 9

Middle cerebral artery paired

Question 10

What is the smallest terminal branch of the internal carotid artery?

Answer 10

Anterior cerebral artery

Question 11

What courses between the left and right anterior cerebral arteries?

Answer 11

Anterior communicating arteries

Question 12

What supply’s 1/3 of the posterior brain and courses across the ventral surface of the brainstem and unite to form the basilar artery?

Answer 12

Vertebral arteries

Question 13

Where does the basilar artery course?

Answer 13

Along the ventral surface of the pond divides into the left and right posterior cerebral arteries

Question 14

What forms an anatomoses with the posterior cerebral artery?

Answer 14

Posterior communicating artery

Question 15

What drains the inner and outer dura layers into the confluence of sinuses?

Answer 15

Superior sagittal sinus

Question 16

Where do the cerebral veins drain into?

Answer 16

Superior sagittal sinus

Question 17

Where does the occipital sinus lie and what does it drain into?

Answer 17

Lies posterior to the cerebellum and drains into the confluence of sinuses

Question 18

Where does the inferior sagittal sinus lie and what does it drain into?

Answer 18

Lies in the inferior free border of the falx cerebri and drains into the straight sinus

Question 19

What is formed by the Union of the great cerebral vein with the inferior sagittal sinus?

Answer 19

Straight sinus and drains into confluence of sinus runs along the line of attachment of the falx cerebri tentorium cerebelli

Question 20

What is the confluence of sinuses?

Answer 20

Where the superior inferior and occipital sinus terminate and where the transverse sinus begins

Question 21

Where is the transverse sinus enclosed in?

Answer 21

Posterior margin of tentorium cerebelli

Question 22

What is the sigmoid sinus?

Answer 22

Continuation of transverse sinus and drains into the internal jugular vein

Question 23

What sinus is located on either side of the sella turcica and drains into the pertrosal sinuses?

Answer 23

Cavernous sinus

Question 24

Where does the inferior and superior pertrosal drain into?

Answer 24

Proximal end of sigmoid or distal end of transverse anterior horns

Distal or terminal end of sigmoid sinus

Question 25

Branches of brachiocephalic artery?

Answer 25

Right subclavian and right common carotid

Question 26

Features of subclavian?

Answer 26

Located in root of neck supply head upper limbs and thoracic and abdominal walls

Question 27

Origin of right subclavian artery?

Answer 27

Terminal branch of brachiocephalic artery courses posterior to the right of the sternoclavicular joint

Question 28

Origin of left subclavian?

Answer 28

Posterior branch of aortic arch

Question 29

Course of subclavian arteries?

Answer 29

Course superiority and lateral from origin crosses the outer border of first rib becomes axillary artery

Question 30

Major branches of subclavian?

Answer 30

Vertebral and internal thoracic arteries

Question 31

What veins are continuous with the axillary vein?

Answer 31

Subclavian veins

Question 32

What are the four parts of the vertebral arteries?

Answer 32

Cervical vertebral suboccipital and intracranial

Question 33

Origin of vertebral arteries?

Answer 33

Subclavian artery first part

Question 34

Course of vertebral artery?

Answer 34

Courses through foramen a transversaria of C6 to C1 vertebrae referred to vertebral part as it ascends between the atlas and foramen magnum it’s called the suboccipital part after passing through the foramen magnum it’s called the intracranial part

Question 35

Terminal end of vertebral arteries?

Answer 35

Basilar artery

Question 36

What is a vertebral vein?

Answer 36

Vertebral veins form a plexus of small veins that surround the vertebral part of the vertebral artery within the foramen a transversaria of the cervical vertebrae

Question 37

What are the three carotid arteries?

Answer 37

External common and internal all located in carotid sheath

Question 38

Origin of right common carotid artery?

Answer 38

Terminal branch of brachiocephalic artery

Question 39

Origin of left common carotid artery?

Answer 39

Posterior branch of aortic arch

Question 40

Course of carotid arteries?

Answer 40

Posterolateral to trachea and larynx and bifurcated at the level of the laminae of thyroid cartilage at C3/4 divides into external and internal carotid arteries

Question 41

What branches are off the external carotid artery?

Answer 41

Middle meningeal arteries and maxillary branch

Question 42

What is the location of the internal jugular vein?

Answer 42

Posterolateral to common carotid artery and internal carotid artery lies within carotid sheath

Question 43

What is the origin of the internal jugular vein?

Answer 43

Jugular foramen and is the continuation of the sigmoid sinus

Question 44

Course of internal jugular vein?

Answer 44

Descends with carotid sheath to root of the neck and unites with the subclavian vein to form brachiocephalic vein

Question 45

What does the external jugular vein drain?

Answer 45

Superficial structures of the head

Question 46

Course of the external jugular vein?

Answer 46

Course through superficial fascia begins near sternocleidomastoid muscle posterior to the angle of the mandible descends across the sternocleidomastoid muscle and enters the posterior triangle of the neck