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Anatomy Mod 6 Test
Anatomy
Question | Answer |
---|---|
Several muscles work together to laterally rotate the thigh. What do we call an entire group of muscles that work together? | Synergists. |
One of the jobs of the flexor digitorum superficialis is to flex the wrist. When working in this fashion, does this muscle form a first-class lever, a second-class lever, or a third-class lever? | 2nd-class lever. |
Of the muscles which are involved in mastication? | Masseter, buccinator, lateral pterygoid, medial pterygoid, temporalis. |
Name the “kissing muscle.” | Orbicularis oris. |
What is the difference between extrinsic hand muscles and intrinsic hand muscles? | Extrinsic hand muscle move the hand from outside the hand while intrinsic muscle move the hand from within. |
List all of the muscles that are involved in flexing the thigh. List their antagonists. | The hamstring muscle group, iliopsoas, sartorius, adductor longus, and gracilis. The quadriceps femoris and adductor magnus |
List all of the muscles that are involved in abducting the thigh. List their antagonists. | Gluteus maximus, gluteus medius, and gluteus minimus. Adductor longus, adductor magnus, and gracilis. |
There are two muscles that flex the forearm. List them. List their antagonist. | Biceps brachii and brachioradialis. Triceps brachii. |
There are two supinators of the forearm at the elbow. List them. List their two antagonists. | Supinator and biceps brachii. Pronator teres and pronator quadratus. |
Origin | The point at which a muscle's tendon attaches to the more stationary bone. |
Insertion | The point at which a muscle's tendon attaches to the more moveable bone. |
Belly | The largest part of the muscle, which actually contains the muscle cells. |
Mastication | The process of chewing. |
Extrinsic hand muscles | Muscles in the forearm that create movement in the hands. |
Intrinsic hand muscles | Muscles in the hand that produce movement in the hand. |