Muscles Of The Head And Neck

Question 1

Anterior scalene

Answer 1

O: anterior tubercles of the transverse processes of C3-C6
I: scalene tubercle of the first rib
F: elevates the first rib; flexes and laterally bends the neck

Question 2

Auricular

Answer 2

O: 1) anterior- galea aponeurotica anterior to ear
2) superior- galea aponeurotica superior to ear
3) posterior- mastoid process
I: auricle anteriorly, superiority and posteriorly
F: wiggle擺動 the ears

Question 3

Buccinator

Answer 3

O: pterygomandibular rap he, mandible, and the maxilla lateral to the molar teeth
I: angle of mouth and the lateral portion of the upper and lower lips
F: pulls the corner of mouth laterally; presses the cheek against the teeth

Question 4

Corrugator

Answer 4

O: medial part of the superciliary arch
I: skin of the medial half of the eyebrow
F: pulls eyebrows together medially

Question 5

Depressor anguli oris

Answer 5

O: oblique line of the mandible
I: angle of the mouth
F: pulls the corner of the mouth downward

Question 6

Depressor labii inferioris

Answer 6

O: anterior surface of the mandible
I: skin of the lower lip
F: depresses the lower lip

Question 7

Depressor sepi

Answer 7

O: maxilla near the midline above the incisor teeth
I: nasal septum
F: depresses the nasal septum; involved in flaring the nostrils
鼻孔，動

Question 8

Digastric

Answer 8

O: 1) anterior belly- digastric fossa of the mandible
2) posterior belly- mastoid birch of the temporal bone
I: body of the hyoid via a fibrous loop over an intermediate tendon
F: elevates the hyoid bone; depresses the mandible

Question 9

Epicranius

Answer 9

O: 1) frontalis- galea aponeurotica
2) occipital: superior nuchal line
I: 1) frontalis: skin of the eyebrows
2) occipital: galea aponeurotica
F: elevates the eyebrows and wrinkles the forehead