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BIO 3401 - FACIAL SYMMETRY LAB
MEASUREMENTS
Start by drawing a line EXACTLY down the centre
of the face. Note if the head is inclined
slightly and try to account for this. Dont try
get the line through the centre of every feature.
A. The width of the iris of each eye
B. From the centre line to the tear duct on each
eye
C. The width of each eye from the tear duct to
the corner on the other side where the eyeball is
no longer visible
D. The distance from the centre line to the other
side where the eyeball is no longer visible
AR
AL
BL
BR
CR
CL
E. The distance from the centre line to the point
on the side of the head that defines the visible
limit of the cheek bones
DR
DL
ER
EL
IL
IR
F. The width of each nostril
FL
FR
G. The width of the mouth from the centre line to
point where the line of the lips disappears
GL
GR
HL
HR
H. The distance from the centre line to the point
on the side of the head that defines the visible
limit of the jaw bones
I. On each side of the face, draw a line from the
point where the line of the lips disappears, to a
point where the line through the tear ducts(BR
BL) meets the centre line and measure this
distance.