Chapter 04: Muscular System Fehrenbach: Illustrated Anatomy of the Head and Neck, 5th Edition MULTIPLE CHOICE 1. The ______ of a muscle is generally attached to the LEAST movable structure. a. insertion b. origin c. middle d. beginning ANS: B
A B C D
Feedback The insertion of a muscle is generally attached to the more movable structure. The origin of a muscle is generally attached to the least movable structure. The insertion is the end of a muscle attached to the more movable structure. The insertion is the end of a muscle attached to the more movable structure.
DIF: Recall REF: p. 92 OBJ: 3 TOP: CDA: General Chairside, I. A. Demonstrate understanding of basic oral and dental anatomy, physiology, and development MSC: NBDHE, Scientific Basis for Dental Hygiene Practice, 1.1.1 Head and Neck Anatomy 2. Which of the following muscles originates on the inferior border of the mandible and inserts
at each of the labial commissures? a. Levator anguli oris muscle b. Depressor labii inferioris muscle c. Depressor anguli oris muscle d. Orbicularis oris muscle ANS: C
A B C
D
Feedback The levator anguli oris muscle originates on the canine fossa of the maxilla and inserts into each labial commissure, elevating the labial commissure. The depressor labii inferioris muscle inserts into the skin of the lower lip. The depressor anguli oris muscle originates on the inferior border of the mandible. It inserts into each labial commissure and pulls each labial commissure down. The orbicularis oris muscle encircles the mouth.
DIF: Recall REF: p. 101 OBJ: 2 | 3 TOP: CDA: General Chairside, I. A. Demonstrate understanding of basic oral and dental anatomy, physiology, and development MSC: NBDHE, Scientific Basis for Dental Hygiene Practice, 1.1.1 Head and Neck Anatomy 3. Which of the following muscles is NOT considered a suprahyoid muscle? a. Digastric muscle
