A | B |
striated muscle | voluntary, controlled by will (raise hand to wave) |
non-striated muscle | involuntary, automatically function (move food through intestines) |
cardiac muscle | heart- involuntary |
origin | part of muscle that does NOT move |
insertion | part of muscle at the more MOVABLE attachment |
belly | middle of muscle |
occipitalis | muscle that draws the scalp BACKWARD |
frontalis | riases the eyebrows, draws the scalp FORWARD 7 causes wrinkles |
aponeurosis | TENDON that connects occipitalis & frontalis |
auricularis superior | ABOVE the ear; draws ear upward |
auricularis anterior | in FRONT of ear; draws ear forward |
auricularis posterior | BEHIND ear; draws ear backward |
platysma | aids in lowering the lower JAW and lip |
sternocleidomastoideus | aids in lowering and rotating HEAD |
orbicularis oculi | ring muscle of the eye socket; enables eyes to close |
buccinator | thin flat muscle of cheek between upper & lower jaw (WHISTLING) |
orbicularis oris | puckers lips (KISSING) |
risorius | corners of mouth (GRINNING) |
triangularis | pulls down corners of mouth (FROWN) |
zygomaticus | extends from zygomatic bone to elevate lip (LAUGHING) |
3 muscles of shoulder & arm | biceps, deltoids, triceps |
extensors | straighten the wrist, hand, & fingers |
flexors | bending the wrist |
pronators | turn hand inward palm-down |
supinator | rotates radius outward & palm upward |
abductors | separate fingers |
adductors | bring fingers together |
opponent | pulls THUMB toward fingers |