Biod 151 Module 5 Exam Latest Updated 2024
BIOD 151 MODULE 5 EXAM LATEST UPDATED 2024 Masseter - Action: jaw closure Innervation: trigeminal nerve (CN V, mandibular branch) Semispinalis Capitis - Origin: articular processes of inferior cervical & transverse process of superior thoracic vertebrae Insertion: occipital bone Action: - Bilateral: extend head - Unilateral: laterally flexes neck to same side Innervation: spinal nerves Sternocleidomastoid - Origin: sternal end of clavicle and manubrium Insertion: mastoid region of skull Action: - Bilateral: neck flexion - Unilateral: turns face to opposite side Innervation: accessory nerve (CN XI) Splenius Capitis - Origin: spinous process/ligaments of inferior cervical vertebrae Insertion: mastoid process, occipital bone of skull Action: - Bilateral: extend head - Unilateral: laterally flexes neck to same side Innervation: cervical spinal nerves Longissimus cervicis - Origin: transverse processes of superior thoracic vertebrae Insertion: transverse process of middle and superior cervical vertebrae Action: - Bilateral: extend head - Unilateral: laterally flexes neck to same side Innervation: cervical and thoracic spinal nerves
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