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Questions and Answers
What is the function of fixator muscles?
What is the main responsibility of the prime mover or agonist?
Which type of muscle arrangement includes triangular and large muscles?
What is the role of synergist muscles?
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What is the function of tendons in relation to muscles?
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What is the role of insertion in muscle anatomy?
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How many origins can skeletal muscles like triceps have?
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What is the primary function of muscles attached to bones by tendons?
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What is the main function of muscles that can only pull, not push?
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What are the different types of muscle arrangements mentioned in the text?
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Which muscle is mainly responsible for chewing?
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Which muscles are involved in breathing?
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Which muscle is responsible for voluntary control over urination?
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Which muscle closes the anal canal?
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Which muscle inserts on the coccyx and encircles the urethra?
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Which muscle is important in swimming and inserts on the humerus?
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Which muscle flexes the forearm and lifts the ulna?
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Which muscle stabilizes in flexing the forearm and inserts on the radius?
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Which muscle causes abduction and originates from the clavicle and scapula?
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Which muscle prevents dislocation and inserts on the humerus?
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Where are the flexor muscles located in the forearm?
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Which muscle is responsible for causing the palm to face downward or backward?
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Which muscle causes the palm of the hand to face upward?
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Which muscle is the largest and most superficial of the buttocks?
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What muscle maintains the position of the pelvic organ and encircles the urethra?
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Which muscle is responsible for adducting and medially rotating the arm?
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Which muscle is a stabilizer in flexing the forearm and extends the forearm?
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Which muscle is the largest and most superficial of the buttocks?
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Which muscle is responsible for flexing the forearm and lifting the ulnar?
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Which muscle is located on the posterior of the forearm and causes the palm to face downward or backward?
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Which muscle is located on the anterior of the forearm and causes the palm of the hand to face upward?
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Which muscle acts as a synergist and fixator in the arm and shoulder girdle?
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Which muscle is responsible for extending the forearm?
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Which muscle is a broad flat muscle in the lower back, important in swimming?
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Which muscle is located in the middle of the sole?
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Which muscle causes the palm of the sole to face upward?
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Study Notes
Muscle Anatomy and Function
- Muscles are attached to bones by tendons
- Origin is the stationary bone during muscle contraction, while insertion is the movable bone
- Muscles can only pull, not push
- Prime mover or agonist is mainly responsible for producing movement
- Synergists assist the prime mover to add extra force
- Fixators give the prime mover a stable base on which to act
- Different types of muscle arrangements include triangular (deltoid), large (maximus), small (minimus), long (longus), rectus, transversus, oblique
- Skeletal muscles can have multiple origins, such as triceps (3 origins) and biceps (2 origins)
- Different types of muscle arrangements include convergent, circular, parallel, fusiform, pennate (unipennate, bipennate, multipennate)
- Levers consist of a rigid bar, fulcrum, effort, and load, with three classes of levers
- Specific muscles of the head include occipitofrontalis, orbicularis oculi, zygomaticus, orbicularis oris, buccinator, temporalis, masseter
- Muscles of the tongue include hyoglossus, styloglossus, and sternocleidomastoid, trapezius, erector spinae, external and internal intercostals, diaphragm, pectoralis minor, serratus anterior, levator scapulae, and levator ani.
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Description
Test your knowledge of muscle anatomy and function with this quiz. Explore the attachment of muscles to bones, muscle arrangements, types of levers, and specific muscles of the head and tongue. Understand the roles of prime movers, synergists, and fixators in producing movement.
