Anterior Neck Muscles

Question 1

Digastric

Answer 1

Origin:
Lower margin of mandible (anterior belly), Mastoid process of temporal bone (posterior belly)

Insertion:
Intermediate tendon connected to hyoid bone

Function:
Depresses mandible, Elevates hyoid bone

Question 2

Stylohyoid

Answer 2

Origin:
Styloid process of temporal bone

Insertion:
Body of hyoid bone

Function:
Elevates & retracts hyoid bone

Question 3

Mylohyoid

Answer 3

Origin:
Mylohyoid line of mandible

Insertion:
Median raphe, Body of hyoid bone

Function:
Elevates hyoid bone, Floor of mouth & Tongue

Question 4

Geniohyoid

Answer 4

Origin:
Inferior mental spine on inner surface of mandible

Insertion:
Body of hyoid bone

Function:
Pulls hyoid bone anteriorly & superiorly, Depresses mandible

Question 5

Sternohyoid

Answer 5

Origin:
Posterior surface of manubrium of sternum

Insertion:
Body of hyoid bone

Function:
Depresses hyoid bone

Question 6

Omohyoid

Answer 6

Origin:
Superior border of scapula

Insertion:
Inferior border of hyoid bone

Function:
Depresses, retracts & lateral flexion of hyoid bone

Question 7

Sternothyroid

Answer 7

Origin:
Posterior surface of manubrium of sternum, first coastal cartilage

Insertion:
Oblique line of thyroid cartilage

Function:
Depresses larynx & hyoid bone

Question 8

Thyrohyoid

Answer 8

Origin:
Oblique line of thyroid cartilage

Insertion:
Body & greater horn of hyoid bone

Function:
Depresses hyoid bone or elevates larynx

Question 9

Origin:
Lower margin of mandible (anterior belly), Mastoid process of temporal bone (posterior belly)

Insertion:
Intermediate tendon connected to hyoid bone

Function:
Depresses mandible, Elevates hyoid bone

Answer 9

Digastric

Question 10

Origin:
Styloid process of temporal bone

Insertion:
Body of hyoid bone

Function:
Elevates & retracts hyoid bone

Answer 10

Stylohyoid

Question 11

Origin:
Mylohyoid line of mandible

Insertion:
Median raphe, Body of hyoid bone

Function:
Elevates hyoid bone, Floor of mouth & Tongue

Answer 11

Mylohyoid

Question 12

Origin:
Inferior mental spine on inner surface of mandible

Insertion:
Body of hyoid bone

Function:
Pulls hyoid bone anteriorly & superiorly, Depresses mandible

Answer 12

Geniohyoid

Question 13

Origin:
Posterior surface of manubrium of sternum

Insertion:
Body of hyoid bone

Function:
Depresses hyoid bone

Answer 13

Sternohyoid

Question 14

Origin:
Superior border of scapula

Insertion:
Inferior border of hyoid bone

Function:
Depresses, retracts & lateral flexion of hyoid bone

Answer 14

Omohyoid

Question 15

Origin:
Posterior surface of manubrium of sternum, first coastal cartilage

Insertion:
Oblique line of thyroid cartilage

Function:
Depresses larynx & hyoid bone

Answer 15

Sternothyroid

Question 16

Origin:
Oblique line of thyroid cartilage

Insertion:
Body & greater horn of hyoid bone

Function:
Depresses hyoid bone or elevates larynx

Answer 16

Thyrohyoid