Dental hygiene board review Guide Questions and Correct Solutions

Which paired muscle covers most of the lateral aspect of the ramus of the mandible? - Masseter The fibrous connective tissue membrane covering the outside of bone is called the - periosteum What is the purpose of the synovial membrane in a synovial joint? - Secrete fluid into the joint cavity Which component of a nerve conducts impulses - Dendrite Which spinal vertebrae fuse together form triangular mass? - Sacral T/F The ophthalmic nerve is the first division of the fifth cranial nerve (V), the trigeminal nerve. The maxillary nerve is the second division of the trigeminal nerve. - Both statements are true Which injections technique would be used to achieve anesthesia of teeth # 15 and # 16? - Posterosuperior alveolar block The infraorbital foramen is located in which bone? - Maxilla All of the following are foramina in the sphenoid bone EXCEPT the A. Incisive papilla B. Superior orbital fissure C. Foramen ovale D. Foramen rotundum - A. incisive foramen Which muscle retracts the tongue? - Styloglossus Which plane of dissection divides the body into anterior and posterior portions? - Frontal Teeth # 3 and # 14 are - contralateral to each other The following characteristics describe muscle tissue EXCEPT one. Which one is the EXCEPTION? A. Each muscle has two ends B. Muscle cells are called sarcomeres C. Muscles are categorized according to their role in movement D. The muscle origin is attached the least movable part E. The muscle insertion is attached to the most movable part - B. Muscle cells are called sarcomeres. Which lymph nodes drain both sides of the chin, the lower lip, the floor of the mandibular incisors? - Submental Which endocrine gland matures T-lymphocytes for the immune system and undergoes involution (reduces in size) after puberty? - Thymus The corrugator supercilii is a muscle of facial expression in which region? - Eye Which muscle elevates the mandible? - Medial pterygoid Which muscle originates from the alveolar process the maxilla, the alveolar process of the mandible, and the pterygomandibular raphe? - Buccinator Which part of the brain homeostasis? - Hypothalamus Which branch of the trigeminal nerve contains both sensory and motor components? - Mandibular V3 Which of the following are divisions or systems of the autonomic nervous system? - Sympathetic system, parasympathetic system Which cranial provides parasympathetic innervation to the cardiac muscles, thymus, and stomach? - X Which of the following is NOT innervated by the middle superior alveolar nerve? - Distobuccal root of tooth # 2 The muscles of facial expression innervated by which nerve? - VII Which vein receives blood flow from the superficial temporal vein and the facial vein and drains into the external jugular vein? - Retromandibular The articulation of the temporomandibular joint involves which two bones? - Temporal bone , mandibular condyles Which artery supplies the mandibular teeth and the surrounding tissues with blood? - Inferior alveolar Which major artery supplies the brain with blood and is palpated during emergency situations? - Common carotid Which artery is the source of the ophthalmic artery, has NO branches, and is located deep to the sternocleidomastoid muscle? - Internal carotid The facial artery is a direct branch of which main artery? - External carotid Which of the following arteries supplies maxillary anterior teeth with blood? - Anterior superior alveolar The facial vein drains each region of the head and neck EXCEPT one. Which one is the EXCEPTION? - Orbital region Veins of teeth have alveolar branches and dental branches. Which branch type would drain the pulp tissue of teeth through the apical foramen? - Dental branches Which vein has NO valves, drains most of the head and neck region, and does NOT drain any of the dentition? - Internal jugular T/F Many veins in the head and neck region lack valves. Valveless veins of the head and neck contribute to the severe and rapid spread of dental infections. - Both statements are true. Each of the following is an afferent cranial nerve EXCEPT one. Which one is the EXCEPTION? A. Optic B. Vagus C. Olfactory D. Hypoglossal - D. Hypoglossal Which muscle, upon contraction, protrudes the tongue? - Genioglossus Each of the following is a suprahyoid muscle EXCEPT one. Which one is the EXCEPTION? A. Mylohyoid B. Geniohyoid C. Stylohyoid D. Sternohyoid - D. Sternohyoid Cervical lymph nodes run along which muscle? - Sternocleidomastoid For each numbered muscle, select the most closely linked facial expression from the list provided. 1. Mentalis 2. Risorius 3. Corrugator supercilii 4. Levator anguli oris 5. Buccinator a. frowning b. raising chin and protruding c. chewing d. stretching lips e. smiling - 1. Mentalis- b. raising chin and protruding 2. Risorius- d. stretching lips 3. Corrugator supercilii- a. frowning 4. Levator anguli oris- e. smiling 5. Buccinator c. chewing