BIOL 100 Lecture 1: Human Body Unit Notes
Document Summary
Anatomy: the science of the shape and structure of organisms. (fff) form follows function: parts of the body are shaped to perform a particular job. Cells are the structural and functional units of all living organisms. Humans have some 30 trillion (estimation) number of cells: multi-cellular (more than one cell) Tissue: a group of similar cells that perform the same function. Organ: a group of different tissues with a specific job. Organ system: a group of organs that work together to perform a specific job. Homeostasis: the ability of an organism or cell to maintain internal equilibrium by adjusting its physiological processes. Part ii: area of focus: the skeletal system. When you are born, you have over 300 bones. There are two main categories of bones. Compact bone: long bones, flat bones, irregular bones, short bones. A human joint: a place where two bones meet. Ball and socket joint: radial movement in almost any direction.
