Anatomy- Structural organization in the body

Levels of structural organization:

- Chemical level (atoms/molecules)
- Cellular level (cells)
- Tissue level (groups of cells. 4 types: muscle, connective, epithelial, nervous)
- Organ level (groups of tissue)
- System level (groups of organs. 10 types:
 skeletal (skeleton)
 muscular (movements)
nervous (collecting, transferring, and processing information)
endocrine (communication within body via hormones)
circulatory (pumping/channelling blood)
integumentary (skin, hair, nails)
respiratory (organs used for breathing)
digestive (digesting and processing food with salivary glands and the esophagus)
urinary (kidneys, bladder, and ureters. Fluid balance and excretion of urine)
reproductive (sex organs)