Human Anatomy and Physiology I Department of Biology, WCU
Topics Cell Chemistry Cells Tissues Muscles Nerves
Definitions Gross anatomy Microscopic anatomy structures seen with eye seen with a microscope
Structural hierarchy Atoms: blocks of matter (H+, Na+) Molecules: collection of atoms (H20) Macromolecules: large molecules Sugars
Structural hierarchy Macromolecules Fats Nucleic acids
Structural hierarchy Organelles: collection of molecules (endoplasmic reticulum)
Structural hierarchy Cells: collection of organelles (muscle, kidney)
Structural hierarchy Tissues: cells performing a common function (muscle, intestinal)
Structural hierarchy Organs: tissues performing similar function (blood vessel)
Structural hierarchy Organ system: organs performing a specific function (digestive, CV system)
Structural hierarchy Organism: all levels to sustain life
Structural hierarchy