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Axial Muscles

Axial Muscles. Salt lake community college Human anatomy laboratory. Have both their origins and insertions on parts of the axial skeleton. Move the head and spinal column. nonverbal communication chewing swallowing Aid breathing. Support and protect the abdominal and pelvic organs.

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Axial Muscles

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  1. Axial Muscles Salt lake community college Human anatomy laboratory

  2. Have both their origins and insertions on parts of the axial skeleton. • Move the head and spinal column. • nonverbal communication • chewing • swallowing • Aid breathing. • Support and protect the abdominal and pelvic organs. • Not responsible for stabilizing or moving the pectoral or pelvic girdles or their attached limbs. Axial Muscles

  3. Originate in the superficial fascia or on the skull bones. • Insert into the superficial fascia of the skin. • Contort the skincausing it to move. Muscles of Facial Expression

  4. Refers to the process of chewing. • Move the mandible at the temporomandibular joint. • Paired muscles of mastication • temporalis • masseter Muscles of Mastication

  5. Flex the head and neck downward. • “neck flexion” and “head flexion” refer to the same movement • The main muscles are the sternocleidomastoid and the three scalenes. Anterior and Lateral Neck Muscles

  6. Extend the head/neck. • The trapezius attaches to the skull and helps extend the head/neck. • Primary function is to help move the pectoral girdle. Posterior Neck Muscles

  7. Respiration involves inhalation and exhalation. • Diaphragm • Internal intercostals • External intercostals Muscles of Respiration

  8. Is an internally placed, dome-shaped muscle. • Forms a partition between the thoracic and abdominal cavities. • The most important muscle associated with breathing. The Diaphragm

  9. Four pairs of muscles collectively compress and hold the abdominal organs in place. • the external oblique • internal oblique • transversus abdominis • rectus abdominis • Work together to flex and stabilize the vertebral column. • When they unilaterally contract they laterally flex the vertebral column. Muscles of the Abdominal Wall

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