Surface anatomy

Question 1

Which dermatome covers… the forehead?

Answer 1

CN V1

Question 2

Which dermatome covers… the cheeks to either side of the nose?

Answer 2

CN V2

Question 3

Which dermatome covers… the chin?

Answer 3

CN V3

Question 4

Which dermatome covers… the neck?

Answer 4

C2

Question 5

Which dermatome covers… the tips of the shoulders?

Answer 5

C4/C5

Question 6

Which dermatomes cover… the hand from thumb to little finger?

Answer 6

C6, C7, C8

Question 7

Which dermatome covers… the outer thigh?

Answer 7

L2

Question 8

Which dermatome covers… the inner thigh?

Answer 8

L3

Question 9

Which dermatome covers…the outer lower leg?

Answer 9

L5

Question 10

Which dermatome covers… the inner lower leg?

Answer 10

L4

Question 11

Which dermatome covers…the lateral foot?

Answer 11

S1

Question 12

Which dermatome covers… the back of the leg?

Answer 12

S2

Question 13

Which spinous process is level with the highest point of the iliac crest?

Answer 13

LIV

Question 14

Which spinous process is level with the sacral dimple?

Answer 14

SII

Question 15

What happens at the sternal angle?

Answer 15

Articulation of rib 2.
Limit of superior pericardium, beginning and end of arch of aorta, SVC enters heart.
Bifurcation of trachea.
Superior limit of pulmonary trunk.

Question 16

Do the intercostal bundles travel directly inferior or directly superior to relevant rib?

Answer 16

Directly inferior.

Question 17

Where is the oblique fissure of the right lung?

Answer 17

Draw a curved line starting at T4, then crossing the 5th intercostal space laterally and follows contour of rib VI anteriorly.

Question 18

Where is the oblique fissure of the left lung?

Answer 18

Start between spinous processes of T3 - T4, cross fifth intercostal space laterally and follow contour of 4th rib.