ANP 1105 Lecture 1: Topic 1 Notes (Structural Organization of the Human Body)

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Jackie Carnegie

Document Summary

Atom: smallest particle of an element with all of the properties of that element. Molecules: the smallest amount of a substance that can exist alone (a combination of atoms) Organelle: molecules that associate in specific ways; basic components of living cells. Cell: fundamental structural and functional unit of a living thing: cells very widely in shape and size, reflecting unique functions in the body. Tissue: groups of similar cells that have a common function: epithelium: protection, muscle: movement, connective: structure, support, filler, connection, nervous: communication. Organ: structure composed of at least 2 (but usually 4) tissue types that performs a specific function. Organ system: organs that work closely with one another to accomplish a common purpose. Plasma membrane: external cell barrier, transports substances in or out of the cell, maintains internal environment. Ribosomes: sites of protein synthesis, composed of proteins and rna.