Tissues

1. Loose
   1. Areolar

      Anmerkungen:

      • forms membranes between organs and binds them together
   2. Adipose

      Anmerkungen:

      • Stores fat, cushions, and insulates
   3. Reticular

      Anmerkungen:

      • thin branched reticular fibers that support the walls of the liver and the spleen
2. Dense
   1. Dense Regular

      Anmerkungen:

      • strong collagen fibers that bind structures as parts of tendons and ligaments
   2. Dense irregular

      Anmerkungen:

      • thicker, randomly distributed collagen fibers and is found in the dermis
   3. Elastic

      Anmerkungen:

      • elastic fibers that make up hollow internal organs like the lungs and blood vessels
3. Specialized
   1. Cartilage

      Anmerkungen:

      • provides support Consists of fibers and a gel-like substances Lacks a direct blood supply, so it is slow to heal Found at the ends of various bones; in the ear; in the larynx; and in the pads between the bones of the spinal column, pelvic girdle, and knees
   2. Bone

      Anmerkungen:

      • matrix consists of mineral salts and collagen, heals rapidly, compact and spongy bone
   3. Blood

      Anmerkungen:

      • Composed of cells suspended in fluid, produced in the tissue of hollow parts of certain bones

1. Shape
   1. Cuboidal
   2. Columnar
   3. Squamous
2. Number of Cell Layers
   1. Stratified
   2. Simple
   3. Pseudostratiied

      Anmerkungen:

      • only columnar cells can be pseudo stratified 
   4. Transitional

Anmerkungen:

• function is movement attached to bones, in the walls of hollow internal organs, heart able to contract in response to stimuli

1. Skeletal

   Anmerkungen:

   • contains striations long cellsresponsible movement of body parts, facial expressions, writing, talking, singing, chewing, swallowing, and breathingvoluntaryattached to bones
2. Smooth

   Anmerkungen:

   • contains no striations short cells multinucleate involuntary
3. Cardiac

   Anmerkungen:

   • found in the heart striated, branched, and joined end to end one nucleus  intercellular junctions called intercalated disc involuntary  can function without nervous simulation

Anmerkungen:

• conduct impulses for coordination, regulation, and perception found in brain, spinal cord, nervescells communicate with each other and other body parts

1. Neurons

   Anmerkungen:

   • dendrites transmit electrical signals to axons function is to coordinate, regulate, and integrate
2. Neuroglia

   Anmerkungen:

   • supporting cells of the nervous tissue carryout phagocytosis some are involved in cell to cell communication