Muscles of The Head and Neck and Muscles of The Trunk

Review Exercise 11 Axial Muscles 1: Muscles of the Head and Neck Name Date 1. What is the origin of the masseter muscle? 2. What kind of muscle is the orbicularis oculi or orbicularis oris muscle in terms of action? 3. Fill in the following illustration for the muscles of the head, using the terms provided. Color the origin (attachment point 1) in red and the insertion (attachment point 2) in blue for each muscle. buccinator occipitofrontalis orbicularis oris masseter orbicularis oculi temporalis a. b. C. d. e. f.

152 EXERCISE ELEVEN Axial Muscles 1: Muscles of the Head and Neck 4. Which muscle attaches to/originates on the temporal fossa? 5. Name two muscles that close the jaw. 6. Where does the sternocleidomastoid muscle attach superiorly/insert? 7. What muscle closes and protrudes the lips? 8. Where does the orbicularis oculi insert? 9. What is the inferior attachment/insertion of the temporalis? 0. Name a muscle that closes the eye lid. 1. What is the action of the sternocleidomastoid? What muscle is a synergist with the masseter? All of the muscles of facial expression are innervated by which nerve?

Revie Exercise 12 Axial Muscles 2: Muscles of the Trunk Name Date 1. What is the innervation of the diaphragm? 2. What is the action of the quadratus lumborum? 3. What action does the multifidus have in common with the erector spinae? 4. How does the action of the rectus abdominis differ from that of the other abdominal muscles? 5. What is the physical relationship of the intercostal muscles to one another? 6. Compression of the abdominal wall occurs by which four muscles? 7. Extension and rotation of the vertebral column occur by which group of muscles?

160 EXERCISE TWELVE Axial Muscles 2: Muscles of the Trunk 8. Which muscle is responsible for most of the air inhaled during relaxed breathing? 9. What is the action of the external intercostal muscles? 10. Which muscle attaches to/inserts on the central tendon? 11. The tendinous intersections are found in which muscle? 12. Bending over, as in doing an abdominal crunch, uses which muscle? 13. Which is the deepest anterior abdominal muscle? 14. Label the muscles in the following illustration. Color the origin (attachment one) in red and the insertion (attachment two) in blu for each of the indicated muscles where the attachment points are visible. a. b. e C. d. f. Anterior View