face and scalp blood supply

Question 1

face and scalp blood supply from? exception?

Answer 1

external caroitd mostly

internal supplies the supratrochlear and supraorbital aa

Question 2

branches of the external carotid

Answer 2

facial aa> mental Aa (out of mental foramen), also goves off sup and inf labial aa, lat nasal aa, angular aa 
superficial temporal 
transverse facial
maxillary
occipital 
posterior auricular aa

Question 3

label the vessels

Answer 3

Question 4

venous drainage of the skull and face

Answer 4

skull: internal jugular via the sinusoidal system
face: both the internal and external jugular, some vv drain in to sinuses and some to the external jugular

Question 5

venous drainage of the face

Answer 5

typically done by vv accomodating the aa of the face

Question 6

label all vessels

Answer 6

Question 7

danger triangle

Answer 7

vv within this area, from nasion to both lip angles forming triangle, are capable of draining to the cavernous sinus
allows a means for infectious material to reach this sinus leading to serious medical complications