Anatomy of the Muscular System 2
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12 terms
Terms | Definitions |
|---|---|
 What are the infraspinatus, supraspinatus, subscapularis, and teres minor? | rotator cuff muscles |
| What fixes the scapula and prevents winging? | shoulder girdle muscles |
| What attaches the ulna and radius to the humerus and scapula? | forearm muscles |
| What does the opponens pollicis do? | moves the thumb |
| What are the three layers of the abdominal wall? | external oblique, internal oblique, and transversus abdominis |
| What runs down the middle line and flexes the spinal column? | rectus abdominis |
| What are levers composed of? | rigid bar, fulcrum, load, and force |
| What is in the middle of a first-class lever? | fulcrum |
| What is in the middle of a second-class lever? | load |
| What is in the middle of a third-class lever? | pull |
| What is the continuous, low level of sustained contraction maintained by skeletal muscles? | tonicity |
| What is the function of lower limb muscles? | locomotion and maintenance of stability |
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