Types of Tissue - Anaphy Lab

• epithelial tissue

  • covers the outside of the body and lines the internal organs and cavities
  • barrier against mechanical injury, invasive microorganisms and fluid loss
  • provides surface for absorption, excretion and transport of molecules
• simple squamous epithelium are found in the air sacs of the lungs, kidney glomeruli, lining of the heart, blood vessels and lymphatic vessels
• simple squamous allows passage of materials by diffusion and filtration
• simple cuboidal epithelium are found in kidney tubules, ducts and small glands and surface of ovary that functions for secretion
• simple columnar are found in the lines of digestive tract, gallbladder and excretory ducts that serves for absorption and enzyme secretion
• pseudostratified ciliated columnar are found in the lines of bronchi, uterine tubes, and uterus that propels mucus or reproductive cells by ciliary action
• stratified squamous are found in the line of esophagus, mouth and vagina that protects underlying tissues in areas subject to abrasion
• connective tissues

  • bind structures together
  • form a framework and support for organs and the body
  • store fat
  • transport substances
  • protect against disease
  • help repair tissue damage
• adipose tissue are found in kidneys, under the skin, in bones, within abdomen and in breasts that provides reserve fuel (lipids), insulates against heat loss and supports and protects organs
• loose (areolar) connective tissue are found in the epithelia of the human body that wraps and cushions organ
• fibrous connective tissue are found in the dermis of the skin, submucosa of the digestive tract, and fibrous capsules of organs and joints that provides structural strength
• bone (osseous) tissue are found in the bones for support, protection and provides lever system for muscles to act on, stores calcium and fat and forms blood cells
• hyaline cartilage are found between the bones such as elbows, knees and ankles, and ends of the ribs which is a strong, flexible tissue that protects joints and bones that also acts as a shock absorber
• vascular tissue (blood) which transports oxygen, carbon dioxide, nutrients, and other substances
• nervous tissue

  • monitors and regulates the functions of the body
  • transmits electrical signals from sensory receptors to the spinal cord or brain and from the spinal cord or rains to effectors (muscle and glands)
• muscle tissue

  • have the special ability to shorten or contract to produce movement
  • highly cellular and well supplied with blood vessels
• skeletal muscle are attached to bones and it is voluntary and striated
• smooth muscle are found in the walls of hollow organs that moves substances or objects along internal passage ways which is involuntary and unstriated and spindle-shaped
• cardiac muscle are striated and branched that covers the wall of the heart
• endothelium - lines vessels of the lymphatic and cardiovascular system which is made up of a single layer of squamous cells
• mesothelium - forms the surface layer of the serous membrane that lines body cavities and internal organs which also provide a smooth and protective surface
• mesothelial cells are squamous epithelial cells that secrete a fluid that lubricates the mesothelium
• particle pollution/particulate matter - made up of particles of solids or liquids that are in the air such as dust, dirt, and soot
• both simple and pseudostratified columnar epithelia are heterogenous epithelia because they include additional types of cells interspersed among the epithelial cells
• Dense Connective Tissue

  1. Dense regular - consists of collagenous fibers packed into parallel bundles
  2. Dense irregular - consists of collagenous fibers interwoven into a mesh-like network
• Reticular Tissue - made up of a network of reticular fibers that provides a supportive framework for soft organs
• neuroglia plays an essential role in supporting neurons and modulating their information propagation
• Dendrites - transfer the nerve impulse to the soma (neuron)
• axon - carries the action potential away to another excitable cell
• cartilage - consists of collagenous fibers embedded in a firm matrix of chondroitin sulfates
• hyaline cartilage - provides support with some flexibility
• fibrocartilage - provides some compressibility and can absorb pressure
• elastic cartilage - provides firm but elastic support
• dense and loose connective tissue are made up of cells called fibroblasts
• cartilage are made up of cells called chondrocytes
• bone tissue are made up of cells called osteocytes
• adipose are made up of cells called adipocytes