Part C Assessments Complete the following statements: 1. The of a muscle is usually attached to a fixed location. 2. The of a muscle is usually attached to a movable location. 3. The forearm is flexed at the elbow when the muscle contracts. 4. A muscle responsible for most of a movement is called a(n) 5. Assisting muscles are called 6. Antagonists are muscles that resist the actions of and cause movement in the opposite direction. 7. When the forearm is extended at the elbow joint, the muscle acts as the prime mover (agonist).
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Muscles are attached to bones by tendons and are responsible for movement. They work in pairs or groups to facilitate movement by contracting and relaxing. Step 2: Identify the origin and insertion of a muscle. The origin of a muscle is its fixed attachment, Show more…
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Part C Assessments Complete the following statements: 1. The of a muscle is usually attached to a fixed location. 2. The of a muscle is usually attached to a movable location. 3. The forearm is flexed at the elbow when the muscle contracts. 4. A muscle responsible for most of a movement is called a(n) . 5. Assisting muscles are called . 6. Antagonists are muscles that resist the actions of and cause movement in the opposite direction. 7. When the forearm is extended at the elbow joint, the muscle acts as the prime mover (agonist).
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PART C ASSESSMENTS Complete the following statements: 1. The origin of a muscle is typically attached to a more immovable or fixed part. 2. The of a muscle is typically attached to a more movable part on the other side of the joint. 3. When the forearm is extended at the elbow joint, the biceps brachii muscle acts as the agonist. 4. The forearm is flexed at the elbow when the muscle contracts. 5. A muscle responsible for an action is called a(an) . 6. Assisting muscles of an agonist are called as . 7. Antagonists are muscles that resist the actions of and cause movement in the opposite direction. 8. An agonist that provides the most force of a specific action is sometimes referred to as a .
Complete the chart by listing the muscle(s) or parts of muscles that are antagonists in their actions to the muscles in the left column. Agonist Antagonist Deltoid (anterior fibers) Deltoid (middle fibers) Deltoid (posterior fibers) Supraspinatus Subscapularis Teres major Infraspinatus Teres minor Latissimus dorsi Pectoralis major (upper fibers) Pectoralis major (lower fibers) Coracobrachialis
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