Exam 4 Action And Innervation Flashcards
External intercostal
Action
Nerve
Elevates ribs
Intercostal nerve
Internal intercostal
Action
Nerve
Elevates and depresses ribs
Intercostal nerve
Innermost inercostal
Action
Nerve
Elevates and depresses ribs
Intercostal nerve
Diaphragm
Action
Nerve
Chief muscle of inspiration
Phrenic nerve
External oblique
Action
Compresses and supports abdominal viscera
Flexes and rotates trunk
Internal oblique action
Compresses and supports abdominal viscera
Flexes and rotates trunk
Transversus abdominus
Action
Compresses and supports abdominal viscera
Rectus abdominus
Action
Compresses and supports abdominal viscera
Flexes trunk
Psoas major and minor
Action
Flexes vertebral column laterally
Quadratus lumborum
Action
Flexes vertebral column laterally
Ischiocavernosus
Action
Nerve
Maintains erection of penis or clitorus by compressing outflow veins
Perineal nerve
Bulbospongiosus
Action
Nerve
Maintains erection of penis or clitoris by compressing outflow veins
Perineal nerve
