| A | B |
|---|
| Levels of Organization | In Order from least to most complex: Atom, molecules, cells, tissues, organ, organ system, organism |
| Homeostasis | Keeping the internal body environment stable |
| Cells | A group of similar molecules working together |
| Tissue | A group of similar cells working together |
| Organs | A group of tissues working together to perform a major function |
| Organ system | Two or more organs and tissues working together to keep the body healthy |
| Organism | Several organ systems working together |
| Connective Tissue | A body tissue that provides support for the body and connects all of its parts. EX: tendons, cartilage, fat, bones. |
| Nerve Tissue | A body tissue that carries messages back and forth between the brain and every other part of the body. |
| Epithelial Tissue | A body tissue that covers the surfaces of the body inside and out. |
| Muscle Tissue | A body tissue that provides movement through the contraction of muscle |
| Circulatory System | System that carries O2 and needed materials to body cells and removes CO2 and waste materials from the same Cells |
| Circulatory System Organ | Heart |
| Digestive System | The body System that breaks down food into useful nutrients, and provides them in a form the body can use. |
| Digestive System Organ | Stomach - breakdown; Small Intestine - nutrient absorption |
| Endocrine System | System that provides chemicals (hormones) that help control body processes |
| Endocrine System Organs | Liver(controls blood sugar), Pituitary (controls growth), Hypothalamus (temperature, water balance, sleep) |
| Excretory System | The body system that removes wastes |
| Excretory System Organ | Kidney - filters out the waste liquids; The small and large intestine take out the good solids and liquids, leaving only waste material |
| Immune system | The body system that fights disease |
| Immune System Main Tissue | White Blood Cells |
| Muscular System | The body system that is responsible for all types of movement |
| Muscle Tissues and Types | Cardiac Muscle Type: the Heart; Smooth Muscle type: digestive tract muscle; Skeletal Muscle - bicep |
| Nervous system | The body system that interprets info from the world, and provides responses. |
| Nervous System organ and tissues | Organ - the brain; tissues - the spinal cord and nerves |
| Reproductive system | the body system that helps create offspring |
| Reproductive system organs | Ladies - ovaries (makes the eggs); Gents - testes (makes the sperm) |
| Respiratory System | The body system that puts oxygen in and removes CO2 from the blood |
| Respiratory System Organ | Lungs |
| Skin (integumentary) system | Protects the body, keeps insides in, and maintains water balance |
| Skeletal system | the body system that supports and protects the body, helps with movement and creates blood cells |
| Skeletal system Tissue | Bones |
