Question | Answer |
Anatomy | the science of structure & functions of a human body. |
Physology | science of body functions.(how the body works) |
Chemical level(2nd level) | includes atoms & molicules.& its the 2nd level. |
atoms | smallest units of matter that oarticipates in chemical reactions.(carbon, hydrogen, oxogyn, nitrogen) |
molecules | 2 or more atoms joined together.(DNA, hemoglobin,glucose, vitamins) |
cells | the basic structural & functional units of an organism & the small living units in a human body.(muscle cells, blood cells, & nerve cells) |
organells | specialized structure cells contain. (nucleas, mitochondria, lysosomes) |
Tissue Level(3rd level) | 3rd level of structular organization. |
Tissue | groups of cells & the materials that are surrounding that work together to preform a particular function.(epethial tissue, connective tissue, mudsle tissue, vervous tissue) |
Organ Level | different kinds of tissue joined together to form body structures. |
organs | have a recognizable shape, composed of 2 or more different types of tissue, & have specific functions(heart, stomach, liver, lungs, brain) |
serous membrane | layor on the outside of the stomach that protects & reduces friction when |
smooth muccles tissue layor | (under Serous)churn & mix food * push it to the next digestive organ(small intestine.) |
Epethail Tisssue | (liner of stomach)contributes fluids & chemicals to aid digestion. |
System Level | consists of related organs that have a common function.(sometimes an organ is part of more then one system like the pancreas is both digestive & hormone systems.) |
digesive system | breaks down & abosrbs molocules in food. |
organism level | highest level. all the systems in the body combine to make an organism(a human body) |