Questions and Answers
What is the movement of a body part away from the midline called?
What is the movement of a body part toward the midline called?
What is an antagonist?
Something opposing or resisting the action of another.
What is an assistant mover?
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What is biomechanics?
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What is circumduction?
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What is co-contraction?
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What is concentric contraction?
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What is dorsiflexion?
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What is eccentric contraction?
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What is eversion?
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What is extension?
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What is flexion?
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What is the frontal (coronal) plane?
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What is helping synergy?
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What is hyperextension?
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What is inversion?
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What is isometric contraction?
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What is kinesiology?
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What is the midline?
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What is a neutralizer?
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What is plantarflexion?
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What is a prime mover (agonist)?
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What is pronation?
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What is rotation?
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What is the sagittal (anteroposterior) plane?
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What is stabilization?
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What is a stabilizer?
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What is supination?
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What is the transverse (horizontal) plane?
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What is true synergy?
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Study Notes
Muscle Movements
- Abduction: Movement away from the midline of the body.
- Adduction: Movement toward the midline of the body.
- Flexion: Decreases the angle between two body segments.
- Extension: Increases the angle between two body segments; return from flexion.
- Hyperextension: Extension of a limb beyond normal limits.
- Dorsiflexion: Turning the foot or toes upward.
- Plantarflexion: Extending the ankle by pointing the foot and toes.
- Inversion: Turning the sole of the foot inward.
- Eversion: Turning the sole of the foot outward.
- Pronation: Facing downward position; palm backward or downward; foot arch flattens.
- Supination: Facing upward position; palm forward; opposite of pronation.
- Circumduction: Circular movement of an extremity.
Muscle Actions
- Concentric Contraction: Muscle shortens while increasing tension.
- Eccentric Contraction: Muscle lengthens while increasing tension.
- Isometric Contraction: Muscle contracts without joint movement or change in length.
- Co-Contraction: Agonist and antagonist muscles contract simultaneously.
- Helping Synergy: Two muscles work together for a single movement.
- True Synergy: Muscle contracts to prevent undesired actions of another muscle.
Anatomical Concepts
- Midline: Imaginary line down the center of the body.
- Frontal (Coronal) Plane: Divides the body into anterior and posterior parts.
- Sagittal (Anteroposterior) Plane: Divides the body into right and left sections.
- Transverse (Horizontal) Plane: Divides the body into superior and inferior sections.
Muscle Roles
- Prime Mover (Agonist): Muscle primarily responsible for movement.
- Antagonist: Muscle opposing the action of another.
- Assistant Mover: Muscle aiding the prime mover.
- Stabilizer: Muscle that stabilizes a body part.
- Neutralizer: Muscle that counteracts unwanted motion of another muscle.
Scientific Disciplines
- Biomechanics: Study of mechanical aspects of movement for technique enhancement.
- Kinesiology: Study of movement, including active and passive structures involved.
- Stabilization: The process of maintaining balance and stability during movement.
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Description
Test your knowledge of muscle movements and actions with this quiz. From abduction to circumduction, explore how different types of muscle contractions work. Perfect for anatomy students and fitness enthusiasts alike!