Biology Muscles and Movements
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Questions and Answers

What is the primary cause of muscle fatigue?

  • Nutrient deficiency
  • Overstretching of muscles
  • Dehydration
  • Lactic acid accumulation (correct)
  • Dorsiflexion refers to pointing the toes downwards.

    False

    What is circumduction?

    The movement of the body in a circular manner.

    The opposite of ________ is eversion.

    <p>inversion</p> Signup and view all the answers

    Match the following joint movements with their descriptions:

    <p>Supination = Upper limbs facing forward Pronation = Palms facing down Dorsiflexion = Toes pointing upwards Plantar Flexion = Toes pointing downwards</p> Signup and view all the answers

    What is the primary function of tendons?

    <p>They attach muscle to bone.</p> Signup and view all the answers

    The tongue is considered the strongest muscle in the human body.

    <p>True</p> Signup and view all the answers

    What are the two muscles that work as antagonistic pairs in the bicep curl exercise?

    <p>Biceps and Triceps</p> Signup and view all the answers

    ________ is the muscle action where the muscle stays the same length so no movement occurs.

    <p>Isometric</p> Signup and view all the answers

    Match the type of movement with its description:

    <p>Flexion = Decrease in the angle between bones Extension = Increase in the angle of a joint Abduction = Movement away from the midline Adduction = Movement towards the midline</p> Signup and view all the answers

    What percentage of total body weight do muscles make up?

    <p>40%</p> Signup and view all the answers

    Isotonic eccentric contractions result in muscle shortening.

    <p>False</p> Signup and view all the answers

    What is the term for muscles arranged to allow opposing actions?

    <p>Antagonistic pairs</p> Signup and view all the answers

    Study Notes

    Friday 29th November 2024 - The Ghusles

    • Muscles and Bones: Tendons attach muscles to bones, ligaments attach bone to bone. Sprains occur when a joint is damaged.
    • Rest, Ice, Compression: Muscle recovery involves rest, ice, and compression. Building muscle takes longer than losing it. Smallest muscles (e.g., in hand) are ~200.
    • Muscle Pairs: Muscles work in pairs (antagonistic pairs). One muscle contracts (agonist), while the other relaxes (antagonist). This reverses the movement.

    Types of Movements

    • Flexion: Decreasing the angle between two bones.
    • Extension: Increasing the angle between two bones.
    • Abduction: Moving a limb away from the midline of the body.
    • Adduction: Moving a limb towards the midline of the body.
    • Rotation: Circular movement around an axis.

    Muscle Types and Actions

    • Isotonic: Muscle changes length.

    • Isometric: Muscle stays the same length.

    • Supination/Pronation: Turning the forearm so palm is up(supination) or down(pronation).

    • Dorsiflexion: Movement of the foot upwards.

    • Plantar flexion: Movement of the foot downwards.

    • Inversion: Turning the foot inwards

    • Eversion: Turning the foot outwards

    Muscle Fatigue

    • Muscle fatigue occurs due to lactic acid buildup.
    • Rest and recovery are necessary for muscle repair.

    Discontinuous Data

    • Limited data groups make generalization difficult; e.g., blood type.

    Graph of Blood Types

    • A graph shows the percentage occurrence of different blood types (A, B, AB, O).

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    Description

    Explore the intricacies of muscles and their movements in this comprehensive quiz. Learn about muscle types, actions, and the various movements involved, including flexion and extension. Test your knowledge of muscular anatomy and physiology.

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