ANATOMY
38
Head & Neck – Circulation
22.
Regarding veins in the skull
a.
do not follow arteries
T
b.
lie subdurally
F - P467 Lasts, run in subarach space then cross subdural space to drain
into nearest available venous sinus of the dura mater
c.
great cerebral vein drains into cavernous sinus
F - drains to straight sinus
23.
Where does the superior cerebral vein lie
a.
deep in the sulci
T – probably. See p467 Lasts
b.
between the dura and the skull
F - this is the sinuses
c.
in the arachnoid mater
T – according to blitz and adam but not sure
d.
in the margins of the falx
F - this is the sinuses
e.
with the superior cerebral artery
F - they don’t follow arteries
24.
regarding internal jugular
a.
runs from angle of jaw to proximal end of clavicle
T
b.
runs deep to two heads of sternocleidomastoid
T - in its inferior 1/3
rd
c.
medial to artery
F - lateral to it
d.
runs in close proximity to thoracic duct.
F - it drains into confluence of L subclavian and LIJ p204 Lasts
25.
All the following are branches of the external carotid EXCEPT
a.
lingual artery
F
b.
facial artery
F
c.
ascending pharyngeal artery
F
d.
hypoglossal artery
T
e.
superior thyroid artery
F
26.
Something about the blood supply to the scalp being supplied
by branches of the external carotid artery
a.
Arteries run in 2
nd
layer of the scalp from external
AND internal carotid arteries:
External
: superficial temporal artery, occipital artery and
posterior auricular artery
Internal
: supratrochlear, supraorbital (both from ophthalmic artery)
27.
The following regarding Kiesselbachs plexus is true p956 Moore
a.
Located at posteroinferior wall of the nasal septum
F – anteroinferior portion of nasal septum
b.
Supplied by branches of maxillary and mandibular artery F – supplied by greater palantine A and ethmoidal A. Maxillay A gives
sphenopalantine A which supplies lateral wall
c.
Supplied by branches of the ophthalmic and maxillary artery F
d.
Supplied by branches of the ECA and ICA
F – Just branches of the External Carotid A
28.
Which of the following statements is correct with regard to
the nasal blood supply – Pg 956 Moore
a.
Kiesselbach's area is a plexus of vessels on the lateral
wall prone to epistaxis
F - plexus on nasal SEPTUM commonly involved in chronic epistaxis
b.
the major contributor to nasal blood supply is the
sphenopalatine artery
T -Lasts supports the answer word for word
c.
the nasal blood supply is solely by branches of the
internal carotid arteries
F - branches of external carotid involved along with sphenopalatine A,
ant and post ethmoidal A, greater palatine A, sup labial A and
lateral nasal branches of facial A.
d.
the blood supply enters principally through the
cribriform plate
F – also enters via branches of maxillary A and others.
e.
blood supply to the nasal septum is poor
F - that is where Kiesselbach’s plexus is so rich blood supply.
Made up of anastamosis between sphenopalantine A, ant and post ethmoidal A,
greater palantine A, superior labial A and lateral nasal branches of the facial A.