Tissues and organs

• What type of tissue forms a continuous layer covering surfaces?

  Epithelial tissue
• What is a characteristic of epithelial tissue?

  It has no blood vessels
• Where do epithelial cells sit?

  On a basement membrane

  
• What is the function of epithelial tissue?

  Protective or secretory function
• What shape are cuboidal epithelium cells?

  Cube shaped
• Where is cuboidal epithelium found?

  Kidney tubules and small intestine
• What is the role of ciliated epithelium?

  Transport substances like mucus
• What shape are ciliated epithelium cells?

  Columnar

  
• Where is squamous epithelium found?

  Walls of alveoli and Bowman’s capsule
• What are the levels of organization in mammalian tissue?

  • Atoms form molecules
  • Molecules form cells
  • Cells form tissues
  • Tissues form organs
  • Organs form systems
• What defines a tissue?

  A group of similar cells working together
• What are the three main types of muscle tissue?

  Skeletal, smooth, and cardiac muscle

  
• What is the function of skeletal muscle?

  Moves the skeleton
• What type of muscle is voluntary?

  Skeletal muscle
• What is a characteristic of smooth muscle?

  It has spindle-shaped cells
• Where is smooth muscle found?

  In blood vessels and digestive tracts
• What is unique about cardiac muscle?

  It contracts rhythmically without stimulation - myogenic
• What type of muscle does not tire?

  Cardiac muscle
• What are stem cells and their function?

  • Unspecialised cells
  • Can divide by mitosis
  • Differentiate into specialized cells
  • Example: Blood cell formation from bone marrow
• What is the role of connective tissue?

  Connect, support, or separate tissues
• What do connective tissues contain?

  Elastic and collagen fibers
• Where is areolar tissue found?

  Under the skin
• What do tendons connect?

  Muscles to bones
• What is the function of adipose tissue?

  Energy store and thermal insulator
• What are blood, bone, and cartilage classified as?

  Connective tissues