Spinal Lab Practical 2 Actions

Question 1

Frontalis Belly, Epicranius Action?

Answer 1

pulls scalp forward; wrinkles forehead & raises eyebrows

Question 2

Occipitalis Belly, Epicranius Action?

Answer 2

pulls scalp backward

Question 3

Procerus Action?

Answer 3

depress eyebrows medially

Question 4

Compressor Naris Action?

Answer 4

compress cartilage at bridge of nose

Question 5

Dilator Naris Action?

Answer 5

widens, dilates nostrils and anterior nasal aperture

Question 6

Depressor Septi action?

Answer 6

widens nostril

Question 7

Corrugator supercilii Action?

Answer 7

draws eyebrows medial and down (forms vertical furrow between eyebrows)

Question 8

Levator Labii Superioris Actions?

Answer 8

raises and everts upper lip

Question 9

Levator Labii Superioris Alaeque Nasi Action?

Answer 9

raises and everts upper lip; dilates nostril