A&P 1, Module 5.docx

3 types of muscle tissue - correct answer skeletal, cardiac, smooth peripheral nerves - correct answer Connects your central nervous system to other parts of the body central nervous system - correct answer brain and spinal cordmo motor actions - correct answer messages sent from central nervous system to muscles Tendons - correct answer Connect muscle to bone Ligaments - correct answer Connect bone to bone All skeletal muscles have... - correct answer origin, insertion, action origin - correct answer attachment of a muscle that remains relatively fixed during muscular contraction Insertion - correct answer The bony site of attachment that is moved by muscle contraction aciton - correct answer the effect produced by muscle contraction Innervation - correct answer the peripheral nerve that provides a muscle with a message from the brain cranial nerves - correct answer 12 pairs of nerves that carry messages to and from the brain orbicularis oculi - correct answer Action: eye closure Innervation: Facial nerve (CN 7) orbicularis oris - correct answer Action: mouth closure: closes lips, protrudes lips forward, presses lips against teeth Innervation: Facial Nerve (CN 7) Zygomaticus - correct answer Action: pulls corner of mouth upward Innervation: Facial Nerve (CN 7) Risorius - correct answer Action: draws corner of mouth laterally Innervation: Facial Nerve (CN 7) Frontalis - correct answer Action: raise eyebrows Innervation: Facial Nerve (CN 7) Buccinator - correct answer Action: Compress cheeks Innervation: Facial Nerve (CN 7) Masseter - correct answer Action: jaw closure Innervation: Trigeminal nerve (CN 5, mandibular branch) Temporalis - correct answer Action: elevates mandible, closes jaw Innervation: Trigeminal nerve (CN5, mandibular branch) semispinalis capitis action - correct answer extends head, bends head to one side, or rotates head semispinalis capitis insertion - correct answer occipital bone semispinalis capitis origin - correct answer Articular processes of inferior cervical & transverse process of superior thoracic vertebrae semispinalis innervation - correct answer spinal nerves sternocleidomastoid insertion - correct answer Mastoid region of skull Sternocleidomastoid action - correct answer flexes and rotates head Sternocleidomastoid innervation - correct answer Accessory nerve (CN XI) sternocleidomastoid origin - correct answer sternal end of clavicle and manubrium Splenious Capitis origin - correct answer Spinous process/ligaments of inferior cervical vertebrae Splenious Capitis Action - correct answer Bilateral extend head Unilateral laterally flexes neck to same side Splenious Capitis (Insertion) - correct answer Mastoid process, occipital bones of skull splenious capitis innervation - correct answer cervical spine nerves