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Questions and Answers
What is the term for a muscle that moves a part away from the midline?
What is the term for a muscle that moves a part away from the midline?
Which term describes a muscle that bends a limb at its joint?
Which term describes a muscle that bends a limb at its joint?
What is the function of an antagonist in muscle movement?
What is the function of an antagonist in muscle movement?
What does the prefix 'epi-' mean in anatomical terms?
What does the prefix 'epi-' mean in anatomical terms?
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What muscle group is described as antagonistic?
What muscle group is described as antagonistic?
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What does the term 'atrophy' refer to in muscle health?
What does the term 'atrophy' refer to in muscle health?
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Which muscle is typically referred to as having two heads?
Which muscle is typically referred to as having two heads?
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What condition results in muscles becoming soft and limp due to a loss of nerve signals?
What condition results in muscles becoming soft and limp due to a loss of nerve signals?
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What is the term for the muscle that raises or elevates a part of the body?
What is the term for the muscle that raises or elevates a part of the body?
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Which term refers to the fundamental unit of muscle tissue?
Which term refers to the fundamental unit of muscle tissue?
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What does the prefix 'tri-' indicate in muscle terminology?
What does the prefix 'tri-' indicate in muscle terminology?
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What is the role of a synergist muscle?
What is the role of a synergist muscle?
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What is the function of the neuromuscular junction?
What is the function of the neuromuscular junction?
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Which type of muscle is referred to as non-striated involuntary muscle?
Which type of muscle is referred to as non-striated involuntary muscle?
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What term describes muscles that are positioned surrounding another structure?
What term describes muscles that are positioned surrounding another structure?
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What does the term 'myasthenia' refer to?
What does the term 'myasthenia' refer to?
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What do the terms muscle origin and muscle insertion refer to?
What do the terms muscle origin and muscle insertion refer to?
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Which type of muscle exhibits a striated appearance and is controlled involuntarily?
Which type of muscle exhibits a striated appearance and is controlled involuntarily?
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Study Notes
Muscle Terminology
- Abductor: Muscle that moves a part away from the midline.
- Adductor: Muscle that moves a part toward the midline.
- Ambulation: Walking, running, or moving from one place to another.
- Antagonist: A substance that inhibits a specific action by binding to a receptor instead of allowing the agonist to bind.
- Antagonistic: Muscles that work against or opposite each other.
- Anti-: Against.
- Agon: Struggle.
- Aponeurosis: A fibrous sheet attaching muscular fibers, serving as origin or insertion for flat muscles.
- Ataxia: Lack of voluntary control of muscle movement.
- Atrophy: Decrease in size or wasting of an organ, tissue, or cell.
- Biceps: Muscles with two divisions (heads).
- Bi-: Two.
- Cardiac Muscle: The middle, thickest layer of the heart muscle.
- Contraction: Movement of organs or tissues for normal functioning.
- Cost/o: Means rib.
- Deltoid: Muscles shaped like the Greek letter delta (Δ).
- Depressor: Muscle that lowers or depresses a part.
- Dystrophy: Defective growth in the size of an organ, tissue, or cell.
- Epaxial: Muscles located above the pelvic axis.
- Epi-: Above.
- Axis: Line about which rotation occurs.
- Extensor: Muscle that straightens a limb or increases joint angle.
- Fascia: A sheet of fibrous connective tissue covering, supporting, and separating muscles.
- Fibr/o: Fiber.
- Flaccid: A condition where muscles become soft and limp due to loss of nerve signals.
- Flexor: Muscle that bends a limb at its joint or decreases joint angle.
- Gracilis: Narrow muscle.
- Hyperextension/Hyperextend: Occurring when a joint is flexed or extended too far.
- Infra-: Beneath, below, or inferior to.
- Latissimus: Broad muscle size.
- Lax/Laxity: Looseness.
- Levator: Muscle that raises or elevates a part.
- Linea Alba: A fibrous band on the ventral abdominal wall, median attachment of abdominal muscles.
- Longissimus: Narrow muscle size.
- Motor Unit: A fundamental structure in the neuromuscular system controlling muscle contraction and movement.
- Muscle Fiber: A microscopic, elongated cell, the fundamental unit of muscle tissue.
- Muscle Insertion: The point where a muscle ends.
- Muscle Origin: The point where a muscle begins.
- My/o: Muscle.
- Myasthenia: Muscle weakness.
- Asthenia: Weakness.
- Neuromuscular Junction: The point where nerve endings contact muscle cells.
- Non-striated Involuntary Muscle: Another name for smooth muscle.
- Oblique: Slanted.
- Orbicularis: Muscles surrounding another structure.
- Pectoral: Muscles located on the chest.
- Pector: Chest.
- Pronator: Muscle that rotates the palmar or plantar surface downward.
- Quadratus: Muscles with square or four-sided shapes.
- Quadriceps: Muscles with four divisions (heads).
- Quadri- Four.
- Rectus: Straight.
- Relaxation: Lessening of tension.
- Rhabdomy/o: Striated muscle.
- Rhomboideus: Diamond-shaped muscles.
- Rotator: Muscle that turns a body part on its axis.
- Scalenus: Unequally three-sided muscles.
- Serratus: Saw-toothed muscles.
- Skeletal Muscle: Muscle fibers ranging from less than half an inch to over three inches in diameter.
- Smooth Muscle: Muscles showing no cross stripes under magnification.
- Sphincter: Tight band.
- Striated Involuntary Muscle: Cardiac muscle, striated but involuntary.
- Striated Voluntary Muscle: Type of muscle tissue with alternating light and dark stripes and voluntary control.
- Supinator: Muscle that rotates the palmar or plantar surface upward.
- Supra-: Above (cranial) or excessive.
- Synergist/Synergistic: Assisting an agonist during an activity.
- Tetany: Muscle spasms or twitching.
- Transverse: Crosswise.
- Triceps: Muscles with three divisions (heads).
- Tri-: Three.
- Malacia: Abnormal softening (ROM is not related to softening in this context).
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Description
Test your knowledge of muscle terminology with this quiz. From abductor and adductor to atrophy and agonist, explore the definitions and functions of various muscle-related terms. Perfect for students of anatomy or anyone interested in understanding muscle dynamics.
