Muscular Tissue Structure and Classification Quiz
20 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the structure that forms the cell membrane of muscle fibers?

  • Myofibrils
  • Sarcolemma (correct)
  • Endomysium
  • Sarcoplasm
  • Which type of muscle is both striated and voluntary?

  • Skeletal muscle (correct)
  • Cardiac muscle
  • Smooth muscle
  • None of the above
  • What type of muscle is non-striated and involuntary?

  • Skeletal muscle
  • Smooth muscle (correct)
  • Cardiac muscle
  • Myofibrils
  • Which connective tissue separates the bundles of muscle fibers in skeletal muscle?

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

    What is the shape of skeletal muscle fibers in cross sections?

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

    Which organelle in skeletal muscle is responsible for regulating the concentration of calcium ions within the myofibrils?

    <p>Sarcoplasmic reticulum</p> Signup and view all the answers

    What is responsible for the red color of Type I (Red) muscle fibers?

    <p>Abundant myoglobin</p> Signup and view all the answers

    What is the structural and functional unit of the muscle?

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

    Which organelle is formed by the invagination of the sarcolemma and plays an important role in conducting waves of excitation to the myofibrils?

    <p>T-tubule</p> Signup and view all the answers

    Which type of muscle fiber contracts faster but becomes easily fatigued?

    <p>Type IIa (White) fibers</p> Signup and view all the answers

    What is the main function of connective tissue in forming tendons and ligaments?

    <p>Binding organs together</p> Signup and view all the answers

    What is the primary component of ground substance (matrix) in connective tissue?

    <p>Proteoglycans and water</p> Signup and view all the answers

    Which type of collagen represents 90% of the body's collagen and is found in skin, bone, tendon, and ligaments?

    <p>Collagen type I</p> Signup and view all the answers

    What is the staining color for collagen fibers that are flexible and have high strength?

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

    Which type of fiber in connective tissue is stained black by silver salts and is referred to as argyrophilic?

    <p>Reticular fibers (collagen type III)</p> Signup and view all the answers

    What is the function of reticular cells in connective tissue?

    <p>Synthesizing collagen type III which form reticular fibers</p> Signup and view all the answers

    What is the distinguishing feature of unilocular adipocytes?

    <p>Large fat vacuole filling the cytoplasm</p> Signup and view all the answers

    What is the main function of free macrophages in connective tissue?

    <p>Phagocytic ability and removal of dead cells, tissue debris, or other particulate material</p> Signup and view all the answers

    What is the defining characteristic of plasma cells?

    <p>Large, ovoid basophilic cytoplasm due to rough endoplasmic reticulum (RER)</p> Signup and view all the answers

    What is the function of undifferentiated mesenchymal cells in connective tissue?

    <p>Acting as stem cells that can differentiate into other types of connective tissue cells</p> Signup and view all the answers

    More Like This

    Muscular Tissue in the Heart
    10 questions
    Muscular Tissue Overview
    25 questions

    Muscular Tissue Overview

    InnocuousAntigorite3531 avatar
    InnocuousAntigorite3531
    Histology of Muscular Tissue
    10 questions
    Use Quizgecko on...
    Browser
    Browser