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33.1 Types of tissues
  • Animals have these levels of organization: molecules - cells - tissues - organs - organ systems - organism.
  • Animal tissues can be categorized into four major types: epithelial, connective, muscular, and nervous tissues.
  • Epithelial tissues, which line body cavities and cover surfaces, are specialized in structure and function.
  • Connective tissues, which protect, support, and bind other tissues, include cartilage and bone and also blood, the only liquid tissue.
  • Muscular tissues, which contract, make body parts move.
  • Nervous tissues coordinate the activities of the other tissues and body parts.
  1. Define tissues, organs, and organ systems and explain how they relate to cells, organisms, and each other.
    Answer
  2. What are the four major types of tissues found in vertebrates?
    Answer
  3. What does it mean to have a simple epithelium as opposed to a stratified one?
    Answer
  4. What are the functions of connective tissue?
    Answer
  5. What are the main types of connective tissues?
    Answer
  6. What are the three types of muscular tissue and where is each found?
    Answer
  7. What are the parts of a neuron and what is the function of each?
    Answer
 Essential Study Partner Summaries of major points
  1. Levels of organization
  2. Four major types of tissue
  3. Epithelial tissue
  4. Connective tissue
  5. Blood
  6. Muscular tissue
  7. Nervous tissue
  8. Neuroglia
Art Review
33.2 Organs and organ systems
  • Organs usually contain several types of tissues. For example, although skin is composed primarily of epithelial tissue and connective tissue, it also contains muscle and nerve fibers.
  • Organs are grouped into organ systems, each of which has specialized functions to complete a larger function.
  • The coelom, which arises during development, is later divided into various cavities where specific organs are located.
  1. What is the function of skin in humans?
    Answer
  2. What is the function of keratin in epidermal cells?
    Answer
  3. What organs and/or organ systems are found in the thoracic and abdominal cavities?
    Answer
 Essential Study Partner Summaries of major points
  1. Organs are combinations of two or more different tissues performing common functions.
  2. Skin as an organ
  3. Regions of skin
  4. Organ systems
Labeling Exercises
33.3 Homeostasis
  • Homeostasis is the dynamic equilibrium of the internal environment. All organ systems contribute to homeostasis in animals.
  1. What is homeostasis?
    Answer
  2. Explain negative feedback.
    Answer
 Essential Study Partner Summaries of major points
  1. Cells of the body live in an internal environment....
  2. Homeostasis is....
  3. Regulation of body temperature
Art Review





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