Anatomy and Physiology, Tissues- Must read questions and answers-Must read before a test,

What is the primary function of epithelial tissue? ️️ To cover surfaces, line cavities, and protect underlying structures How are epithelial cells typically arranged? ️️ In tightly packed sheets with minimal extracellular matrix What characteristic allows epithelial tissue to regenerate quickly? ️️ High mitotic rate What does polarity mean in epithelial cells? ️️ Cells have distinct apical and basal surfaces What is the basement membrane? ️️ A thin layer that anchors epithelial tissue to connective tissue What is the function of simple squamous epithelium? ️️ Allows rapid diffusion and filtration Where is simple squamous epithelium commonly found? ️️ In alveoli of lungs and capillaries What is the function of stratified squamous epithelium? ️️ Protects against abrasion Where is keratinized stratified squamous epithelium found? ️️ In the outer layer of the skin What is the role of simple cuboidal epithelium? ️️ Secretion and absorption Where is simple cuboidal epithelium located? ️️ In kidney tubules and glands What is the function of simple columnar epithelium? ️️ Absorption and secretion What structures increase surface area in simple columnar epithelium? ️️ Microvilli 2 What is the role of goblet cells? ️️ Secrete mucus What is pseudostratified epithelium? ️️ A single layer that appears multilayered Where is pseudostratified ciliated epithelium found? ️️ In the respiratory tract What is the function of cilia? ️️ Move substances like mucus across cell surfaces What defines connective tissue? ️️ Cells embedded in an extracellular matrix What are the main components of connective tissue? ️️ Cells, fibers, and ground substance What is the function of connective tissue? ️️ Support, protect, and bind other tissues What are fibroblasts? ️️ Cells that produce fibers and ground substance What are the three types of fibers in connective tissue? ️️ Collagen, elastic, and reticular fibers What is the function of collagen fibers? ️️ Provide strength and resistance to stretching What is the function of elastic fibers? ️️ Allow tissues to stretch and recoil What is areolar connective tissue? ️️ A loose connective tissue that cushions organs What is adipose tissue specialized for? ️️ Fat storage and insulation What is the function of cartilage? ️️ Provides flexible support What type of cartilage is found in joints? ️️ Hyaline cartilage 3 What is the function of bone tissue? ️️ Support, protection, and mineral storage What cells are responsible for bone formation? ️️ Osteoblasts What cells break down bone tissue? ️️ Osteoclasts What is blood classified as? ️️ A connective tissue What is the main function of blood? ️️ Transport of gases, nutrients, and wastes What are the formed elements of blood? ️️ Red blood cells, white blood cells, and platelets What is muscle tissue specialized for? ️️ Contraction and movement What are the three types of muscle tissue? ️️ Skeletal, cardiac, and smooth muscle What characterizes skeletal muscle? ️️ Striated and voluntary control What characterizes cardiac muscle? ️️ Striated, involuntary, and found in the heart What characterizes smooth muscle? ️️ Non-striated and involuntary What is the function of nervous tissue? ️️ Transmit electrical impulses What are neurons? ️️ Cells that conduct nerve impulses What are neuroglia? ️️ Supporting cells of the nervous system What is the extracellular matrix? ️️ Non-cellular material surrounding cells