Muscle Functions

Functions of differen

50 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Orbicularis oculi
Blinking, squinting, and draws eyebrows inferiorly
Zygomaticus
Raises corners of mouth upwards (smiling)
Risorius
Draws corners of lips laterally, acts as a synergist to zygomaticus
Orbicularis oris
Protrusion of lips (kissing/pursing of lips)
Buccinator
Holds food between teeth during chewing (mastication)
Masseter
Prime mover of jaw closure
Temporalis
Elevates and retracts mandible. Keeps jaw closed at rest
Sternocleidomastoid
Prime mover of head flexion, turns head laterally and flexes head
Splenius
Extend or hyperextend the head. Antagonist to sternocleidomastoid
Erector Spinae
Prime mover of extension of the vertebral column
Quadratus Lumborum
Lateral flexion of the vertebral column. Assists in respiration
Rectus abdominis
Flex and rotate lumbar region, fix and depresses ribs, increases intra-abdominal pressure, used in sit-ups. antagonist to erector spinae
External obliques
Aids rectus abdominis in flexing vertebral column. antagonist to erector spinae
Internal obliques
Aids rectus abdominis in flexing vertebral column. antagonist to erector spinae
Transverse abdominis
Compresses abdominal contents. antagonist to erector spinae