A&P I - Portage Learning - Module 5 Exam with Questions and Answers

A&P I - Portage Learning - Module 5 Exam with Questions and Answers Zygomaticus major/minor ANSWER Action: pull corners of lips upward Innervation: facial nerve (CN VII) Risorius ANSWER Action: pulls the corners of the mouth posteriorly (grin or grimace) Innervation: facial nerve (CN VII) Frontalis (occipitofrontailis) ANSWER Action: raise eyebrows Innervation: facial nerve (CN VII) Buccinator ANSWER Action: compress cheeks Innervation: facial nerve (CN VII) Masseter ANSWER Action: jaw closure Innervation: trigeminal nerve (CN V, mandibular branch) Temporalis ANSWER Action: Elevates mandible, closes jaw Innervation: trigeminal nerve (CN V, mandibular branch) 3 types of muscle tissue ANSWER skeletal, smooth, cardiac conscious control ANSWER a person can consciously decide to use these muscles to complete an action