Organization of The Human Body (S1L1) notes

Anatomy

the study of the structure of an organism (what it is)

Physiology

the study of how the organisms body functions (what it does)

Cell

smallest unit of all living things

Tissue

similar cells with a common function

Organ

2+ tissues with common functions

Organ System

group of organs working toward a common goal

Organism

highest level of structural organization for an individual

Growth

increase in cell number and size leads to increase in body size

Reproduction

producing new cells and organisms

Responsiveness

reacting to change inside or outside the body

Movement

change in position or location; motion of internal organs

Metabolism

all chemical reactions in a living system; energy production and nutrient cycling.

(respiration, digestion, circulation, and excretion)