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things to know
quiz3
| Term | Definition |
|---|---|
| masseter | muscle used in chewing, jaw muscle |
| sternocleidomastoid | side of the neck; helps turn and tilt the head. |
| deltoid | shoulder muscle; lifts the arm backward and outward |
| pectoralis major | large muscle of the upper chest |
| biceps brachii | front of the upper arm; bends the elbow. |
| tibialis anterior | front of the lower leg; helps lift the foot. |
| vastus lateralis | part of the quadriceps on the outer thigh; helps extend the knee. |
| rectus femoris | central thigh muscle; also part of the quadriceps group. |
| gastrocnemius | main muscle of the calf, helps with walking and jumping. |
| soleus | underneath the gastrocnemius; also helps with standing and walking. |
| rectus abdominis | abs"; helps with posture and bending forward. |
| trapezius | muscle of the upper back and neck, helps move the shoulders and neck.Helps lift and rotate the arm |
| Pectoralis Major | Function: Pulls arm across the chest; rotates and adducts the arm Location: Chest |
| Brachialis | Function: Flexes the arm at the elbow Location: Underneath the biceps, also in the upper arm |
| Brachioradialis | Function: Flexes the forearm at the elbow Location: Forearm, near the thumb side |
| Rectus Femoris) | Function: Extend the leg at the knee |
| Vastus Lateralis | Function: Extend the leg at the knee |
| vastus medialis | Function: Extend the leg at the knee |
| vastus intermedius | Function: Extend the leg at the knee |
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