Head & Neck

Question 1

Masseter

[Origin, Insertion, Action]

Answer 1

Origin: Zygomatic arch
Insertion: Angle & ramus of mandible
Action: Close jaw & elevate mandible

Question 2

Mylohyoid

[Action]

Answer 2

Elevate hyoid bone during swallowing

Question 3

Digastric

[Origin, Insertion, Action]

Answer 3

Origin: Mastoid process of temporal bone
Insertion: Connective tissue loop to hyoid bone
Action: Open mouth & depress mandible

Question 4

Sternohyoid

[Origin, Insertion, Action]

Answer 4

Origin: Manubrium of sternum
Insertion: lower margin of body of hyoid bone
Action: Depress larynx & hyoid bone

Question 5

Sternomastoid ((Sternocleidomastoid))

[Origin, Insertion, Action]

Answer 5

Origin: Manubrium of sternum
Insertion: Mastoid process of temporal bone
Action: Flexion of neck forward