ANATOMY 403 Lecture Notes - Lecture 17: Erector Spinae Muscles, Piriformis Muscle, Nova Scotia Trunk 2
Document Summary
Spine: normal curvatures, primary, thoracic & sacral kyphosis, secondary, cervical & lumbar lordosis, curvatures. Intervertebral joint: symphysis (cartilaginous) joint, between bodies of adjacent vertebrae, not located between c1 & c2, sacral or coccygeal vertebrae, anulus fibrosus, outer fibrous ring, fibrocartilage, nucleus pulposus. Muscles: scm, bony attachments, origin: sternum & clavicle. Important in extension & lateral flexion: commonly strained improperly lifting something. Axio-appendicular muscles: extend from thoracic cage to bones of the upper limb, will be discussed in upper limb, but bellies are typically located superficial to the thoracic wall, deltoid, pectoralis major, serratus anterior, external abdominal oblique. Intercostal mm: external, internal, innermost intercostal mm, 11 pairs in intercostal spaces, action: increasing tonus (wo movement, external intercostal: forced inspiration. Iliac crest: greater sciatic notch, acetabulum, deep fossa formed by the ilium, ischium and pubis, socket to accepts the head of the femur.
