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Muscle test
study guide for muscle test
| Question | Answer |
|---|---|
| Flexor muscle | bends a joint located on the anterior of the wrist |
| deltoid | raises the arm laterally |
| tricep brachii | extends the fore arm |
| Quadriceps | rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis |
| hamstring | posterior thigh, bicep femoris, semitendonosis, semimebranosis |
| Pectoralis major | located in the chest helps to adduct the arm |
| erector spinae | back muscle that extends the spine |
| Sternocleidomastoid | connects sternum to mastoid process, turns the head |
| sarcomere | smallest contractile unit of the muscular system |
| myosin | protein in the sarcomere that is located in the middle, and contains the cross bridges |
| atrophy | decrease in muscle size |
| hypertrophy | increase in muscle size |
| bicep brachii | flexes the elbow and supinates the forearm |
| sartorius | tailors muscle, helps you cross your leg |
| masseter | jaw muscle helps you chew your food |
| tibialis anterior | front of the lower leg, dorsiflexes and inverts the foot |
| abduction | moving the limb away from the body. raising the arm laterally |
| inversion | turning the sole of the foot medially |
| isometric contraction | same length, example pushing on a wall |
| isotonic contraction | same tension, example lifting weights |
| lactic acid | waste product of anaerobic respiration, forms when oxygen is not available |
| frontalis | produces lateral wrinkles on your forhead |
| orbicularis oris | closes and protrudes the lips |
| agonist | muscle that acts against the antagonist |
| orbicularis oculi | muscle used for winking |