| A | B |
| Standing on your toes | dorsiflexion |
| moving a limb AWAY from midline | abduction |
| decreases angle of the joint | flexion |
| connects muscle to bone | tendons |
| kissing muscle | orbicularis oris |
| straight muscle of the abdomen | rectus abdominus |
| muscle inverts and dorsiflexes the foot | tibialis anterior |
| powerful hip extensorthat extends the thgh | gluteus maximus |
| muscle group extends the knee | quadriceps |
| muscle flexes the forearm | biceps brachii |
| moves head from side to side | sternocleidomastoid |
| longest muscle; flexor and rotator of hip | sartorius |
| arm position when the palm is facing up | suppination |
| muscle fibers | myfibrils |
| two proteins responsible for the sliding filament theory | actin and myosin |