BIOD 151 Module 5 Exam||Portage Learning||100% Verified Questions & Answers|Latest2024/2025 Study Guide

BIOD 151 Module 5 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide

1. obicularis oculi Action: eye closure
Innervation: Facial Nerve




2. obicularis oris Action: mouth closure
Innervation: Facial nerve




3. zygomaticus mi- Action: pull corners of lips upward Innervation: facial nerve
nor and major (CN VII)




4. Risorius Action: pulls the corners of the mouth posteriorly (grin or
grimace)
Innervation: facial nerve (CN VII)






, BIOD 151 Module 5 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide

5. Frontalis Action: Raise Eyebrows
Innervation: Facial Nerve




6. Masseter Action: Jaw closure
Innervation: Tigeminal nerve




7. Buccinator Action: Compresses cheeks
Innervation: Trigeminal nerve - mandibular branch




8. Temporalis Action: Elevated mandible, jaw closure
Innervation: Trigeminal nerve- mandibular branch






, BIOD 151 Module 5 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide

9. Sternocleidomas- Origin: sternal end of clavical and manubrium
toid Insertion: Mastoid region of skull
Action: Bilateral: neck flexion
Unilateral: Turns face to opposite side
Innervation: Accessory nerve




10. semispinalis Origin: articular process of inferior cervical vertebrae
capitis (C5-C7)
transverse process of superior thoracic vertebrae (T1-T7)
Insertion: Occipital bone
Action: Bilateral- extend head
Unilateral- laterally flexes neck to same side
Innervation: spinal nerves




11. splenius capitis Origin: Spinous processes of C7-T6
Insertion: Mastoid process and occipital bone
Action: Extends head; rotates head
Innervation: Cervical spinal nerves