A Trivia Quiz On Muscle Anatomy!

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| By Ahmad543x
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A Trivia Quiz On Muscle Anatomy! - Quiz

Muscles are made of specialized cells called muscle fibers. The predominant function of muscle fibers is contractibility, which is responsible for all the body movements and the protection of organs. This quiz is about the anatomy of the human muscle system. So, attempt all the nine questions in this trivia to test how much do you know about the topic.


Questions and Answers
  • 1. 

    Which one never regenerates?

    • A.

      Smooth muscle

    • B.

      Skeletal muscle

    • C.

      Cardiac muscle

    Correct Answer
    C. Cardiac muscle
    Explanation
    Cardiac muscle is the correct answer because unlike smooth muscle and skeletal muscle, cardiac muscle cells have a limited ability to regenerate. When cardiac muscle cells are damaged, they are typically replaced by scar tissue rather than new muscle cells. This is why conditions such as heart attacks can lead to permanent damage to the heart muscle. In contrast, smooth muscle and skeletal muscle have the ability to regenerate and repair themselves to some extent after injury.

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  • 2. 

    Which one has the largest dimeter?

    • A.

      Skeletal muscle

    • B.

      Smooth muscle

    • C.

      Cardiac muscle

    Correct Answer
    A. Skeletal muscle
    Explanation
    Skeletal muscle has the largest diameter compared to smooth muscle and cardiac muscle. This is because skeletal muscle is responsible for voluntary movements and needs to generate more force, hence requiring larger and stronger muscle fibers. Smooth muscle and cardiac muscle, on the other hand, have smaller diameters as they are involved in involuntary movements and have different functions in the body.

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  • 3. 

    The shape of smooth muscle is:

    • A.

      Circular

    • B.

      Cylindrical

    • C.

      Fusiform

    Correct Answer
    C. Fusiform
    Explanation
    Smooth muscle is a type of muscle tissue found in the walls of organs and structures such as blood vessels and the digestive system. It is characterized by its ability to contract and relax involuntarily. The shape of smooth muscle is described as fusiform, which means it is elongated and tapered at both ends. This shape allows smooth muscle cells to generate force in a specific direction, facilitating their role in various bodily functions such as peristalsis and blood flow regulation.

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  • 4. 

    Cardiac muscle has:

    • A.

      Numerous mitochondria

    • B.

      Few myofibrils

    • C.

      Intercalated discs

    • D.

      All above

    Correct Answer
    D. All above
    Explanation
    Cardiac muscle has numerous mitochondria, which are responsible for producing energy for the muscle to contract. It also has few myofibrils, which are the contractile units of the muscle. Additionally, cardiac muscle has intercalated discs, specialized junctions that allow for synchronized contraction of the muscle fibers. Therefore, all of the given options are correct.

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  • 5. 

    The branching in muscle happen in:

    • A.

      Smooth muscle

    • B.

      Skeletal muscle

    • C.

      Cardiac muscle

    Correct Answer
    C. Cardiac muscle
    Explanation
    The branching in muscle occurs in cardiac muscle. Cardiac muscle is found only in the heart and is responsible for the contraction and relaxation of the heart chambers. The branching nature of cardiac muscle allows for coordinated and synchronized contraction of the heart, ensuring efficient pumping of blood throughout the body. Smooth muscle and skeletal muscle do not typically exhibit branching to the same extent as cardiac muscle.

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  • 6. 

    Cytoplasm in smooth muscle is:

    • A.

      Acidophilic

    • B.

      Basophilic

    • C.

      Non above

    Correct Answer
    A. Acidophilic
    Explanation
    Smooth muscle cells contain a large amount of cytoplasm, which appears acidophilic due to the presence of abundant mitochondria and myofilaments. Acidophilic refers to the affinity of the cytoplasm for acidic stains, such as eosin, which gives it a pink or red color when stained. This staining characteristic is due to the high concentration of proteins and other acidophilic substances in the cytoplasm. Therefore, the correct answer is acidophilic.

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  • 7. 

    Which one is multi nuclei?

    • A.

      Smooth muscle

    • B.

      Skeletal muscle

    • C.

      caradic muscle

    Correct Answer
    B. Skeletal muscle
    Explanation
    Skeletal muscle is the correct answer because it is the only type of muscle that contains multiple nuclei. Smooth muscle and cardiac muscle have a single nucleus per cell. Skeletal muscle, on the other hand, is made up of long, multinucleated cells called muscle fibers. These multiple nuclei are necessary for the muscle fiber to efficiently carry out its functions, such as muscle contraction and repair.

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  • 8. 

    Which one of the following not striated?

    • A.

      Cardiac muscle

    • B.

      Skeletal muscle

    • C.

      Smooth muscle

    Correct Answer
    C. Smooth muscle
    Explanation
    Smooth muscle is the correct answer because it is the only type of muscle that is not striated. Both cardiac muscle and skeletal muscle have a striated appearance due to the arrangement of contractile proteins within the muscle fibers. Smooth muscle, on the other hand, lacks this striated appearance and has a more uniform and smooth appearance. Smooth muscle is found in the walls of organs and blood vessels and is responsible for involuntary movements.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 13, 2016
    Quiz Created by
    Ahmad543x
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