tissues/organs

• cell: basic unit of a living organism
• tissue: integrates group of cells working together
• muscle tissue: movement

  • smooth muscle: not striated, involuntary, internal organs
  • skeletal muscle: striated, voluntary
  • cardiac muscle: striated involuntary, heart, branching
• connective tissue: connections, cells imbedded in extracellular matrix
• loose connective tissue: cells and fibers embedded in semifluid matter
• areolar tissue: internal cushioning
• dense/fibrous connective tissue: collagen fiber matrix arranged in bundles
• • tendon: muscle to bone
  • ligaments: bone to bone
• adipose: adipocytes, fat cells, store triglycerides
• blood: blood cells in a liquid matrix, plasma
• cartilage: chondrocytes in a collagen matrix
• bone: osteocytes in a calcified collagen matrix
• nervous tissue: relay information
• nueron - cell that transmits message
• glial cells: cells that support neurons
• epithelial: covering

  • simple: 1 layer
  • stratified: multiple layers
  • psuedostratified: single layer but looks like multiple
• epithelial: covering

  • squamous: flat
  • cuboidal: cube shaped
  • columnar: column shape
• organ: part of the body that performs a specific function

  organ system: set of cooperating organs
• integumentary system: protective outer layer, skin
• muscular system: movement, muscles
• skeletal system: internal structure, bones, cartilage
• cardiovascular system: pump blood through the body, heart, blood vessels
• endocrine system: broadcast signaling, hormones
• nervous system: point to point signaling, nerves, brain spinal cord
• lymphatic system: lymph, lymph nodes, spleen, tonsils, immune system
• respiratory system: gas exchange, lungs
• digestive system: break down and absorb nutrients, stomach, intestines
• urinary system: fluid balance and waste, kidneys and bladder
• reproductive system: sexual reproduction, uterus, ovaries, testes
• circulatory system: cardiovascular and lymphatic systems
• excretory system: digestive and urinary systems
• musculoskeletal system: muscle and skeletal system